1. What does JSON stand for?
   a) JavaScript Object Notation
   b) Java Syntax Object Notation
   c) JSON Object Notation
   d) None of the above

Answer: a) JavaScript Object Notation

2. What is JSON used for?
   a) Data interchange format
   b) JavaScript plugin
   c) Code execution
   d) HTML markup

Answer: a) Data interchange format

3. Which of the following data types can be used in JSON?
   a) Strings
   b) Numbers
   c) Booleans
   d) All of the above

Answer: d) All of the above

4. What is the maximum depth limit in JSON?
   a) There is no limit
   b) 10 levels
   c) 100 levels
   d) 1000 levels

Answer: a) There is no limit

5. Which of the following is NOT a valid JSON value?
   a) Null
   b) Undefined
   c) Object
   d) Array

Answer: b) Undefined

6. What does the toJSON() method do?
   a) Converts a JSON string into an object
   b) Converts an object into a JSON string
   c) Parses a JSON file
   d) None of the above

Answer: b) Converts an object into a JSON string

7. Which method is used to parse JSON?
   a) parseJSON()
   b) parse()
   c) fromJSON()
   d) toJSON()

Answer: b) parse()

8. What is JSONP used for?
   a) Cross-domain requests
   b) Client-side validation
   c) Server-side scripting
   d) None of the above

Answer: a) Cross-domain requests

9. Which symbol represents the start and end of a JSON object?
   a) {}
   b) []
   c) ()
   d) <>

Answer: a) {}

10. Which symbol separates the key and value pair in a JSON object?
    a) :
    b) ;
    c) ,
    d) |

Answer: a) :

11. What is the MIME type for JSON?
    a) application/javascript
    b) application/xml
    c) application/json
    d) text/json

Answer: c) application/json

12. Which JavaScript method is used to stringify an object into JSON format?
    a) toJSONString()
    b) parse()
    c) stringify()
    d) fromJSON()

Answer: c) stringify()

13. Which of the following is NOT a valid JSON data type?
    a) Decimal
    b) String
    c) Number
    d) Object

Answer: a) Decimal

14. Which of the following is used to represent arrays in JSON?
    a) {}
    b) []
    c) ()
    d) <>

Answer: b) []

15. Which of the following is NOT a valid way to create a JSON object?
    a) var obj = { name: “John”, age: 30 };
    b) var obj = new Object();
    obj.name = “John”;
    obj.age = 30;
    c) var obj = {“name”: “John”, “age”: 30};
    d) var obj = [ “name”: “John”, “age”: 30];

Answer: d) var obj = [ “name”: “John”, “age”: 30];

16. What is JSON Schema used for?
    a) To validate JSON data
    b) To convert JSON to XML
    c) To create JSON objects
    d) None of the above

Answer: a) To validate JSON data

17. Which of the following is NOT a valid JSON Schema data type?
    a) integer
    b) boolean
    c) real
    d) string

Answer: c) real

18. What is JSON-RPC used for?
    a) Remote procedure calls
    b) Server-side scripting
    c) Client-side validation
    d) None of the above

Answer: a) Remote procedure calls

19. What is JSON-B used for?
    a) Serializing Java objects into JSON
    b) Parsing JSON data into Java objects
    c) Validating JSON data
    d) None of the above

Answer: a) Serializing Java objects into JSON

20. What does the @JsonIgnore annotation do in JSON-B?
    a) Excludes a field from serialization
    b) Includes a field in serialization
    c) Validates a field value
    d) None of the above

Answer: a) Excludes a field from serialization

21. What is JSON-LD used for?
    a) To embed context data within JSON
    b) To retrieve data from external sources
    c) To create JSON objects
    d) None of the above

Answer: a) To embed context data within JSON

22. Which method is used to format JSON data for readability?
    a) json_format()
    b) pretty_print()
    c) format()
    d) None of the above

Answer: b) pretty_print()

23. Which of the following is valid JSON syntax?
    a) { “name”: “John”, “age”: 30, };
    b) { name: “John”, age: 30 }
    c) {“name”: “John”, “age”: 30 }
    d) None of the above

Answer: c) {“name”: “John”, “age”: 30 }

24. Which of the following characters is NOT escaped in JSON?
    a) Backspace
    b) Form feed
    c) Double quote
    d) Single quote

Answer: d) Single quote

25. What is the JavaScript method used to evaluate a JSON string into an object?
    a) evalJSON()
    b) parseJSON()
    c) executeJSON()
    d) None of the above

Answer: b) parseJSON()

26. Which of the following is NOT a property of the JSON object in JavaScript?
    a) JSON.parse()
    b) JSON.stringify()
    c) JSON.serialize()
    d) None of the above

Answer: c) JSON.serialize()

27. What does the reviver parameter do in the JSON.parse() method?
    a) It is used to parse nested JSON data
    b) It is used to modify the parsed data
    c) It is used to validate the parsed data
    d) None of the above

Answer: b) It is used to modify the parsed data

28. Which of the following is a correct JSON data structure?
    a) {“name”: “John”, “age”: 30, “isMarried”: true}
    b) {name: “John”, age: 30, isMarried: true}
    c) {name: “John”, age: 30, isMarried: True}
    d) None of the above

Answer: a) {“name”: “John”, “age”: 30, “isMarried”: true}

29. Which of the following is NOT a valid way to get a JSON array from a string?
    a) JSON.parse(string)
    b) eval(string)
    c) string.toJSON()
    d) None of the above

Answer: c) string.toJSON()

30. What is the difference between JSON and XML?
    a) JSON is easier to read and parse
    b) XML is more suited for complex data structures
    c) JSON is more widely used
    d) All of the above

Answer: d) All of the above

31. Which of the following is NOT a valid way to create a JSON object in Java?
    a) JSONObject obj = new JSONObject();
    obj.put(“name”, “John”);
    obj.put(“age”, 30);
    b) Map, Object> map = new HashMap<>();
    map.put(“name”, “John”);
    map.put(“age”, 30);
    JSONObject obj = new JSONObject(map);
    c) String json = “{\”name\”:\”John\”,\”age\”:30}”;
    JSONObject obj = new JSONObject(json);
    d) None of the above

Answer: d) None of the above

32. What is the syntax to access a property in a JSON object?
    a) object.property
    b) object[“property”]
    c) object->property
    d) None of the above

Answer: b) object[“property”]

33. Which of the following is used to store a JSON object in a cookie?
    a) JSON.parse()
    b) JSON.stringify()
    c) JSON.serialize()
    d) None of the above

Answer: b) JSON.stringify()

34. What is JSON Web Token (JWT) used for?
    a) Authentication and authorization
    b) Data serialization
    c) Remote procedure calls
    d) None of the above

Answer: a) Authentication and authorization

35. Which of the following is a valid JSON example of a nested object?
    a) {“name”:”John”,”address”:{“street”:”123 Main St”,”city”:”Anytown”,”state”:”CA”}}
    b) {“name”:”John”,”address”:[“123 Main St”,”Anytown”,”CA”]}
    c) {“name”:”John”,”address”:{“street”:”123 Main St”},”address”:{“city”:”Anytown”},”address”:{“state”:”CA”}}
    d) None of the above

Answer: a) {“name”:”John”,”address”:{“street”:”123 Main St”,”city”:”Anytown”,”state”:”CA”}}

36. What is the syntax to access an element in a JSON array?
    a) array[index]
    b) array[“index”]
    c) array->index
    d) None of the above

Answer: a) array[index]

37. Which of the following is NOT a valid way to create a JSON object in Python?
    a) data = {“name”: “John”, “age”: 30}
    json_data = json.dumps(data)
    b) data = json.load(“data.json”)
    c) data = json.loads(‘{“name”: “John”, “age”: 30}’)
    d) None of the above

Answer: b) data = json.load(“data.json”)

38. Which of the following is NOT a valid way to create a JSON array in JavaScript?
    a) var array = [“John”, 30, true];
    b) var array = new Array(“John”, 30, true);
    c) var array = {
    0: “John”,
    1: 30,
    2: true
    };
    d) None of the above

Answer: c) var array = {0: “John”, 1: 30, 2: true}

39. What is the difference between a JSON object and a JavaScript object?
    a) There is no difference
    b) A JSON object is a string, while a JavaScript object is an actual object
    c) A JavaScript object is defined using curly braces, while a JSON object is defined using quotes
    d) None of the above

Answer: b) A JSON object is a string, while a JavaScript object is an actual object

40. What is JSON streaming used for?
    a) To reduce memory consumption when working with large data sets
    b) To validate JSON data
    c) To create JSON objects
    d) None of the above

Answer: a) To reduce memory consumption when working with large data sets

41. What is the syntax to add a property to a JSON object?
    a) object.newproperty = value;
    b) object[“newproperty”] = value;
    c) object.addproperty(value);
    d) None of the above

Answer: b) object[“newproperty”] = value;

42. Which of the following is NOT a valid way to create a JSON object in Ruby?
    a) data = {“name” => “John”, “age” => 30}
    json_data = JSON.dump(data)
    b) data = JSON.parse(‘{“name”: “John”, “age”: 30}’)
    c) data = JSON.load(‘data.json’)
    d) None of the above

Answer: c) data = JSON.load(‘data.json’)

43. What does the JSON.stringify() method return?
    a) A JSON string
    b) A JSON object
    c) A JavaScript object
    d) None of the above

Answer: a) A JSON string

44. Which of the following is a correct JSON data structure for an array of objects?
    a) [{“name”: “John”, “age”: 30}, {“name”: “Jane”, “age”: 25}]
    b) {0: {“name”: “John”, “age”: 30}, 1: {“name”: “Jane”, “age”: 25}}
    c) [“name”: “John”, “age”: 30], [“name”: “Jane”, “age”: 25]
    d) None of the above

Answer: a) [{“name”: “John”, “age”: 30}, {“name”: “Jane”, “age”: 25}]

45. Which of the following is valid JSON syntax for an array of numbers?
    a) [1, 2, 3.14]
    b) [“1”, “2”, “3.14”]
    c) [“one”, “two”, “three”]
    d) None of the above

Answer: a) [1, 2, 3.14]

46. What is the syntax to remove a property from a JSON object?
    a) delete object.property;
    b) object.remove(property);
    c) object[“property”] = null;
    d) None of the above

Answer: a) delete object.property;

47. Which of the following is NOT a valid way to create a JSON object in C#?
    a) JObject obj = new JObject();
    obj.Add(“name”, “John”);
    obj.Add(“age”, 30);
    b) JObject obj = JObject.Parse(‘{“name”: “John”, “age”: 30}’);
    c) string json = “{\”name\”:\”John\”,\”age\”:30}”;
    JObject obj = JsonConvert.DeserializeObjectObject>(json);
    d) None of the above

Answer: d) None of the above

48. What is the difference between JSON and BSON?
    a) JSON is more widely used
    b) BSON is more suited for complex data structures
    c) BSON is faster to parse
    d) All of the above

Answer: c) BSON is faster to parse

49. What is the maximum length for a JSON string?
    a) 4GB
    b) 1GB
    c) 16MB
    d) 10MB

Answer: c) 16MB

50. Which of the following is NOT a valid way to retrieve data from a JSON object?
    a) object.property
    b) object[“property”]
    c) object.getProperty()
    d) None of the above

Answer: c) object.getProperty()

1. What does YAML stand for?
   a) Yet Another Markup Language
   b) YAML Ain’t Markup Language
   c) YAML Asks for Markup Language
   d) You Are Markup Language

Answer: b) YAML Ain’t Markup Language

2. Which data types can be represented in YAML?
   a) Strings
   b) Integers
   c) Boolean
   d) All of the above

Answer: d) All of the above

3. Which character is used to indicate a comment in YAML?
   a) #
   b) !
   c) *
   d) –

Answer: a)

4. YAML is a:
   a) Markup language
   b) Scripting language
   c) Data serialization format
   d) None of the above

Answer: c) Data serialization format

5. Which character is used to represent a sequence in YAML?
   a) !
   b) –
   c) ?
   d) :

Answer: b) –

6. Which character is used to represent a mapping in YAML?
   a) !
   b) –
   c) ?
   d) :

Answer: d) :

7. What is the extension of YAML files?
   a) .yaml
   b) .yml
   c) .yamlml
   d) .yam

Answer: b) .yml

8. Which of the following is NOT a scalar data type in YAML?
   a) Integer
   b) String
   c) List
   d) Boolean

Answer: c) List

9. Which of the following is a correct way to represent a block-style sequence in YAML?

a) –
item1
item2
item3

b) – item1, item2, item3

c) [item1, item2, item3]

d) (item1, item2, item3)

Answer:

a) –
item1
item2
item3

10. Is indentation important in YAML?
    a) Yes
    b) No

Answer: a) Yes

11. Which character is used to indicate the start of a new line in a YAML string?
    a) \
    b) |
    c) !
    d) &

Answer: b) |

12. What is the difference between mapping and sequence in YAML?
    a) Mapping is key-value pairs while sequence is a list of values.
    b) Mapping is a list of values while sequence is key-value pairs.
    c) Mapping and sequence are identical in YAML.
    d) None of the above.

Answer: a) Mapping is key-value pairs while sequence is a list of values.

13. Which of the following is NOT a valid way to represent a Boolean value in YAML?
    a) True
    b) true
    c) Yes
    d) On

Answer: d) On

14. What is the difference between null and empty string in YAML?
    a) Null represents absence of a value while an empty string is a value that has no characters.
    b) Null and empty string can be used interchangeably in YAML.
    c) Null and empty string are identical in YAML.
    d) None of the above.

Answer: a) Null represents absence of a value while an empty string is a value that has no characters.

15. Which of the following is a correct way to represent a block-style mapping in YAML?

a) person: {name: John, age: 40}

b) person:
name: John
age: 40

c) person: [name: John, age: 40]

d) person: (name: John, age: 40)

Answer:

b) person:
name: John
age: 40

16. Which of the following is NOT a valid way to represent a null value in YAML?
    a) null
    b) ~
    c) Null
    d) None of the above

Answer: c) Null

17. Which of the following is NOT a scalar data type in YAML?
    a) Integer
    b) String
    c) Mapping
    d) Boolean

Answer: c) Mapping

18. Which of the following is the correct way to include a YAML file within another YAML file?
    a) &file include “filename.yml”
    b) << include “filename.yml”
    c) !include “filename.yml”
    d) #include “filename.yml”

Answer: c) !include “filename.yml”

19. Which character is used to indicate a nested structure in YAML?
    a) .
    b) :
    c) >
    d) \

Answer: a) .

20. What is the difference between a scalar and a non-scalar data type in YAML?
    a) Scalar data types have a single value while non-scalar data types can have multiple values.
    b) Scalar data types can be modified while non-scalar data types are fixed.
    c) Scalar data types are key-value pairs while non-scalar data types are lists of values.
    d) None of the above.

Answer: a) Scalar data types have a single value while non-scalar data types can have multiple values.

21. What is the difference between a flow style and block style in YAML?
    a) Flow style is a compressed format while block style is a more spaced out format.
    b) Flow style does not require indentation while block style does.
    c) Flow style is a single line while block style is multiline.
    d) All of the above.

Answer: d) All of the above.

22. Which of the following is a correct way to represent a multi-line string in YAML?

a) This is a multi-line string.

b) This is a \n
multi-line \n
string.

c) |
This is a
multi-line
string.

d) –
This is a
multi-line
string.

Answer: c) |

This is a
multi-line
string.

23. Which of the following is NOT a valid way to represent a mapping key in YAML?
    a) key: value
    b) ‘key’: value
    c) “key”: value
    d) $key: value

Answer: d) $key: value

24. Which of the following is a correct way to represent a block-style sequence of sequences in YAML?

a) –

• item1
• item2
• item3
• item4

b) [item1, item2], [item3, item4]

c) (item1, item2), (item3, item4)

d) –

• [item1, item2]
• [item3, item4]

Answer:

d) –

• [item1, item2]
• [item3, item4]

1. What is the difference between an alias and an anchor in YAML?
   a) An alias refers to an anchor while an anchor refers to a specific location.
   b) An anchor is used to create an alias while an alias is used to reference an anchor.
   c) An alias and an anchor are identical in YAML.
   d) None of the above.

Answer: b) An anchor is used to create an alias while an alias is used to reference an anchor.

26. Which of the following is a correct way to represent a tagged value in YAML?

a) !tag value

b) – !tag value

c) !tag
value

d) None of the above.

Answer: c) !tag

value

27. What is the difference between a single-quoted and double-quoted string in YAML?
    a) Single-quoted strings cannot contain escape sequences while double-quoted strings can.
    b) Double-quoted strings cannot contain escape sequences while single-quoted strings can.
    c) Single-quoted strings are case sensitive while double-quoted strings are not.
    d) None of the above.

Answer: a) Single-quoted strings cannot contain escape sequences while double-quoted strings can.

28. Which of the following is a correct way to represent a block-style map of scalar values in YAML?

a) {key1: value1, key2: value2}

b) –
key1: value1
key2: value2

c) key1: value1
key2: value2

d) None of the above.

Answer: c) key1: value1

key2: value2

29. Which character is used to represent an escape sequence in YAML?
    a) \
    b) %
    c) $
    d) @

Answer: a) \

30. Which of the following is NOT a valid way to represent a date in YAML?
    a) 2021-07-27
    b) 20210727
    c) ‘2021-07-27’
    d) 07/27/2021

Answer: d) 07/27/2021

31. The default mapping style in YAML is:
    a) Flow
    b) Block

Answer: b) Block

32. Which of the following is a reserved keyword in YAML?
    a) include
    b) list
    c) task
    d) None of the above.

Answer: a) include

33. Which character is used to indicate a literal scalar value in YAML?
    a) |
    b) >
    c) &
    d) !

Answer: a) |

34. Which character is used to indicate a folded scalar value in YAML?
    a) |
    b) >
    c) &
    d) !

Answer: b) >

35. The default scalar style in YAML is:
    a) Single-quoted
    b) Double-quoted
    c) Plain
    d) None of the above.

Answer: c) Plain

36. Which of the following is NOT a valid way to represent a timestamp in YAML?
    a) 2021-07-27T10:23:15Z
    b) 20210727102315
    c) ‘2021-07-27T10:23:15Z’
    d) 07/27/2021 10:23:15

Answer: d) 07/27/2021 10:23:15

37. Which of the following is a correct way to indicate a tag in YAML?

a) !tag
b) tag:
c) #tag
d) @tag

Answer: a) !tag

38. Which character is used to indicate that a scalar value should be represented in block style?
    a) |
    b) >
    c) []
    d) {}

Answer: a) |

39. Which of the following is a correct way to represent a block-style map of non-scalar values in YAML?

a) {key1: [value1, value2], key2: {subkey1: value3, subkey2: value4}}

b) –
key1:

• value1
• value2
  key2:
  subkey1: value3
  subkey2: value4

c) key1: [value1, value2]
key2: {subkey1: value3, subkey2: value4}

d) None of the above.

Answer:

b) –
key1:

• value1
• value2
  key2:
  subkey1: value3
  subkey2: value4

1. Which character is used to indicate that a scalar value should be represented in flow style?
   a) |
   b) >
   c) []
   d) {}

Answer: d) {}

41. Which of the following is a correct way to include a scalar value from another YAML file?

a) &file include “filename.yml”
b) << include “filename.yml”
c) !include “filename.yml”
d) #include “filename.yml”

Answer: b) << include “filename.yml”

42. Which of the following is NOT a valid way to represent a list in YAML?
    a) [- item1, item2]
    b) [item1, item2]
    c) –

• item1
• item2
  d) {item1: value1, item2: value2}

Answer: d) {item1: value1, item2: value2}

43. Which of the following is a correct way to represent a block-style literal scalar value in YAML?

a) |
This is a
literal scalar
value.

b) \
This is a \
literal scalar \
value.

c) ‘
This is a
literal scalar
value.’

d) “
This is a
literal scalar
value.”

Answer: a) |

This is a
literal scalar
value.

44. Which character is used to indicate a folded scalar value with indentation in YAML?
    a) |
    b) >
    c) +
    d) <

Answer: d) <

45. Which of the following is a correct way to represent a flow-style map of non-scalar values in YAML?

a) {key1: [value1, value2], key2: {subkey1: value3, subkey2: value4}}

b) key1: [value1, value2], key2: {subkey1: value3, subkey2: value4}

c) –
{key1: [value1, value2]}
{key2: {subkey1: value3, subkey2: value4}}

d) None of the above.

Answer: a) {key1: [value1, value2], key2: {subkey1: value3, subkey2: value4}}

46. Which character is used to indicate a folded scalar value with no indentation in YAML?
    a) |
    b) >
    c) +
    d) <

Answer: c) +

47. What does a YAML file start with?
    a) —
    b) ===
    c) ***
    d) |||

Answer: a) —

48. Which of the following is a correct way to represent an alias in YAML?
    a) &alias value
    b) *alias
    c) !alias value
    d) None of the above.

Answer: b) *alias

49. Which of the following is a built-in tag in YAML?
    a) !include
    b) !null
    c) !empty
    d) None of the above.

Answer: b) !null

50. What is the basic structure of a YAML document?
    a) Comment, Scalar, Sequence, Mapping
    b) Scalar, Sequence, Mapping, Comment
    c) Mapping, Sequence, Scalar, Comment
    d) None of the above.

Answer: b) Scalar, Sequence, Mapping, Comment

1. What is PowerShell?
   a) A programming language
   b) A command-line shell scripting tool
   c) A database management software
   d) A web development platform

Answer: b) A command-line shell scripting tool

2. Which of the following is not a PowerShell verb?
   a) Get
   b) Set
   c) Delete
   d) Add

Answer: c) Delete

3. Which of the following cmdlets is used to retrieve objects from a remote system?
   a) Export-Csv
   b) Get-WmiObject
   c) Set-Variable
   d) Out-File

Answer: b) Get-WmiObject

4. What is the default execution policy for PowerShell scripts?
   a) Restricted
   b) Unrestricted
   c) Undefined
   d) RemoteSigned

Answer: a) Restricted

5. Which of the following operators is used to compare two values in PowerShell?
   a) ==
   b) =
   c) =>
   d) <=

Answer: a) ==

6. Which of the following parameters can be used with Get-ChildItem cmdlet to only show hidden files?
   a) -IncludeHidden
   b) -ExcludeHidden
   c) -Force
   d) -Hidden

Answer: d) -Hidden

7. Which of the following cmdlets is used to stop a running process?
   a) Stop-Process
   b) Kill-Process
   c) End-Process
   d) Terminate-Process

Answer: a) Stop-Process

8. What is the purpose of the Set-ExecutionPolicy cmdlet?
   a) To change the PowerShell execution policy
   b) To set the data type of a variable
   c) To create a new function
   d) To modify the content of a file

Answer: a) To change the PowerShell execution policy

9. Which of the following cmdlets is used to create a new directory in PowerShell?
   a) New-Directory
   b) Make-Directory
   c) Create-Directory
   d) New-Item

Answer: d) New-Item

10. How can you run a PowerShell script on a remote computer?
    a) Use Invoke-Command cmdlet with -FilePath parameter
    b) Use Start-Process cmdlet with -FilePath parameter
    c) Use Enter-PSSession cmdlet
    d) Use Export-ScheduledJob cmdlet

Answer: a) Use Invoke-Command cmdlet with -FilePath parameter

11. Which of the following cmdlets is used to measure the execution time of a script?
    a) Measure-Object
    b) Get-TimeZone
    c) Get-Date
    d) Get-ChildItem

Answer: a) Measure-Object

12. Which of the following cmdlets is used to get information about installed Windows updates?
    a) Get-Process
    b) Get-Service
    c) Get-Hotfix
    d) Get-AppxPackage

Answer: c) Get-Hotfix

13. What is the purpose of the Select-Object cmdlet in PowerShell?
    a) To filter the output of a command
    b) To sort the output of a command
    c) To select specific properties from the output of a command
    d) To select specific methods from the output of a command

Answer: c) To select specific properties from the output of a command

14. Which of the following cmdlets is used to list all the running processes in PowerShell?
    a) Get-Process
    b) Get-Service
    c) Get-ChildItem
    d) Get-NetIPConfiguration

Answer: a) Get-Process

15. Which of the following operators is used to combine two or more conditions in PowerShell?
    a) –
    b) &&
    c) ||
    d) +

Answer: b) &&

16. Which of the following cmdlets is used to remove an item from the file system?
    a) Remove-Item
    b) Delete-Item
    c) Destroy-Item
    d) Kill-Item

Answer: a) Remove-Item

17. How can you loop through the items in an array in PowerShell?
    a) Use the for loop
    b) Use the while loop
    c) Use the foreach loop
    d) Use the do-while loop

Answer: c) Use the foreach loop

18. Which of the following cmdlets is used to display the current PowerShell version?
    a) Get-PowerShellVersion
    b) Get-Version
    c) Get-Module
    d) Get-Help

Answer: c) Get-Module

19. Which of the following cmdlets is used to list all the services in PowerShell?
    a) Get-Process
    b) Get-Service
    c) Get-ChildItem
    d) Get-NetIPConfiguration

Answer: b) Get-Service

20. Which of the following operators is used to redirect output to a file in PowerShell?
    a) >
    b) |
    c) >
    d) <

Answer: a) >

21. Which of the following cmdlets is used to get help on a specific cmdlet or keyword in PowerShell?
    a) Get-Help
    b) Get-Command
    c) Get-Module
    d) Get-Service

Answer: a) Get-Help

22. Which of the following cmdlets is used to retrieve information on running processes and related system information?
    a) Get-Process
    b) Get-Service
    c) Get-WinEvent
    d) Get-WmiObject

Answer: d) Get-WmiObject

23. What is the purpose of the ForEach-Object cmdlet in PowerShell?
    a) To loop through a collection of objects and perform an operation on each object
    b) To display the current date and time
    c) To add items to an array
    d) To sort a collection of objects

Answer: a) To loop through a collection of objects and perform an operation on each object

24. Which of the following cmdlets is used to get a list of available cmdlets in PowerShell?
    a) Get-Command
    b) Get-Help
    c) Get-Module
    d) Get-Parameter

Answer: a) Get-Command

25. What is the difference between Write-Output and Write-Host cmdlets in PowerShell?
    a) Write-Output can be piped while Write-Host cannot be piped.
    b) Write-Host writes output to the console while Write-Output writes output to the pipeline.
    c) Write-Host writes output to the pipeline while Write-Output writes output to the console.
    d) Write-Output and Write-Host cmdlets are the same.

Answer: b) Write-Host writes output to the console while Write-Output writes output to the pipeline.

26. Which of the following cmdlets is used to list all the environment variables in PowerShell?
    a) Get-Environment
    b) Get-Variable
    c) Get-Path
    d) Get-ChildItem

Answer: b) Get-Variable

27. Which of the following cmdlets is used to display the contents of a file in PowerShell?
    a) Get-Content
    b) Set-Content
    c) Out-File
    d) Copy-Item

Answer: a) Get-Content

28. What is the purpose of the Where-Object cmdlet in PowerShell?
    a) To filter data based on a specific criterion
    b) To sort data in ascending or descending order
    c) To group data based on a specific property
    d) To select specific properties from a collection of objects

Answer: a) To filter data based on a specific criterion

29. Which of the following operators is used to perform a case-insensitive comparison in PowerShell?
    a) -eq
    b) -ne
    c) -ceq
    d) -cne

Answer: c) -ceq

30. Which of the following cmdlets is used to extract specific elements from an array in PowerShell?
    a) Select-String
    b) Select-Object
    c) Select-Xml
    d) Select-Array

Answer: b) Select-Object

31. Which of the following cmdlets is used to convert a number to a string in PowerShell?
    a) ConvertTo-String
    b) ConvertFrom-String
    c) ConvertTo-Number
    d) ConvertFrom-Number

Answer: a) ConvertTo-String

32. Which of the following cmdlets is used to get information about disk drives in PowerShell?
    a) Get-WmiObject
    b) Get-Process
    c) Get-Service
    d) Get-Disk

Answer: d) Get-Disk

33. What is the purpose of the Split method in PowerShell?
    a) To divide a string into multiple substrings based on a specific delimiter
    b) To concatenate two or more strings
    c) To remove white spaces from a string
    d) To convert a string to uppercase or lowercase

Answer: a) To divide a string into multiple substrings based on a specific delimiter

34. Which of the following cmdlets is used to list all the installed modules in PowerShell?
    a) Get-Command
    b) Get-Process
    c) Get-Module
    d) Get-Service

Answer: c) Get-Module

35. What is the purpose of the Sort-Object cmdlet in PowerShell?
    a) To sort data in ascending or descending order based on a specific property
    b) To select specific properties from a collection of objects
    c) To group data based on a specific property
    d) To filter data based on a specific criterion

Answer: a) To sort data in ascending or descending order based on a specific property

36. Which of the following operators is used to perform a case-sensitive comparison in PowerShell?
    a) -eq
    b) -ne
    c) -ceq
    d) -cne

Answer: a) -eq

37. Which of the following cmdlets is used to get the contents of a remote file in PowerShell?
    a) Get-ChildItem
    b) Invoke-Command
    c) Copy-Item
    d) Move-Item

Answer: b) Invoke-Command

38. Which of the following cmdlets is used to display the contents of a directory in PowerShell?
    a) Get-Content
    b) Get-WmiObject
    c) Get-ChildItem
    d) Get-Service

Answer: c) Get-ChildItem

39. What is the purpose of the Join method in PowerShell?
    a) To concatenate two or more strings
    b) To divide a string into multiple substrings based on a specific delimiter
    c) To remove white spaces from a string
    d) To convert a string to uppercase or lowercase

Answer: a) To concatenate two or more strings

40. Which of the following cmdlets is used to create a new variable in PowerShell?
    a) New-Variable
    b) Set-Variable
    c) Create-Variable
    d) Declare-Variable

Answer: a) New-Variable

41. What is the purpose of the Test-Connection cmdlet in PowerShell?
    a) To test the network connectivity between two computers
    b) To test the syntax of a PowerShell script
    c) To test the execution policy of PowerShell
    d) To test the PowerShell version

Answer: a) To test the network connectivity between two computers

42. Which of the following cmdlets is used to list all the installed programs on a computer in PowerShell?
    a) Get-Process
    b) Get-Service
    c) Get-AppxPackage
    d) Get-InstalledProgram

Answer: c) Get-AppxPackage

43. What is the purpose of the if statement in PowerShell?
    a) To execute a block of code if a condition is true
    b) To loop through a block of code while a condition is true
    c) To execute a block of code for a specific number of times
    d) To define a function in PowerShell

Answer: a) To execute a block of code if a condition is true

44. Which of the following cmdlets is used to get information about the file system in PowerShell?
    a) Get-ChildItem
    b) Get-WmiObject
    c) Get-Drive
    d) Get-Volume

Answer: c) Get-Drive

45. What is the purpose of the break statement in PowerShell?
    a) To exit a loop or a switch statement
    b) To continue to the next iteration of a loop
    c) To create a new line in the output
    d) To clear the console screen

Answer: a) To exit a loop or a switch statement

46. Which of the following cmdlets is used to create a new registry key in PowerShell?
    a) New-RegKey
    b) Set-RegKey
    c) Create-RegKey
    d) New-ItemProperty

Answer: a) New-RegKey

47. What is the purpose of the ForEach-Object cmdlet in PowerShell?
    a) To loop through a collection of objects and perform an operation on each object
    b) To sort data in ascending or descending order based on a specific property
    c) To group data based on a specific property
    d) To select specific properties from a collection of objects

Answer: a) To loop through a collection of objects and perform an operation on each object

48. Which of the following operators is used to perform a wildcard match in PowerShell?
    a) *
    b) .
    c) #
    d) %

Answer: a) *

49. Which of the following cmdlets is used to get information about the system memory in PowerShell?
    a) Get-Process
    b) Get-Service
    c) Get-WmiObject
    d) Get-Memory

Answer: c) Get-WmiObject

50. What is the purpose of the switch statement in PowerShell?
    a) To execute different blocks of code based on the value of a variable
    b) To loop through a block of code while a condition is true
    c) To execute a block of code for a specific number of times
    d) To define a function in PowerShell

Answer: a) To execute different blocks of code based on the value of a variable.

1. What is AngularJS?
   a) A server-side language
   b) A database management system
   c) A front-end web application framework

Answer: c) A front-end web application framework

2. What are directives in AngularJS?
   a) A set of rules
   b) A schema
   c) Extensions to HTML with new attributes and elements

Answer: c) Extensions to HTML with new attributes and elements

3. What is data binding in AngularJS?
   a) An algorithm to compress data
   b) Synchronizing data between model and view
   c) Caching data for faster retrieval

Answer: b) Synchronizing data between model and view

4. What is the purpose of ng-app directive in AngularJS?
   a) To define the root element of an application
   b) To define the ng-model attribute
   c) To define a dependency injection

Answer: a) To define the root element of an application

5. What is AngularJS Expression?
   a) Combination of Variables, Operators, and Literals
   b) An AngularJS module
   c) An AngularJS template

Answer: a) Combination of Variables, Operators, and Literals

6. What is $scope in AngularJS?
   a) A predefined AngularJS object
   b) A global variable
   c) A local variable

Answer: a) A predefined AngularJS object

7. What is a service in AngularJS?
   a) A reusable business logic
   b) A web page
   c) A Java program

Answer: a) A reusable business logic

8. Which built-in directive is used to loop through an array or object in AngularJS?
   a) ng-repeat
   b) ng-click
   c) ng-class

Answer: a) ng-repeat

9. What is the use of ng-model directive in AngularJS?
   a) To define a model property
   b) To bind HTML elements to a model
   c) To define a function

Answer: b) To bind HTML elements to a model

10. What is the use of ng-show directive in AngularJS?
    a) To show or hide HTML elements based on an expression
    b) To define a model property
    c) To define a function

Answer: a) To show or hide HTML elements based on an expression

11. What is the difference between one-way data binding and two-way data binding in AngularJS?
    a) One-way data binding updates the model and the view, while two-way data binding only updates the model.
    b) One-way data binding updates the model only, while two-way data binding updates the model and the view.
    c) One-way data binding updates the view only, while two-way data binding updates the model and the view.

Answer: b) One-way data binding updates the model only, while two-way data binding updates the model and the view.

12. What is $rootScope in AngularJS?
    a) A scope that is shared by all controllers in an application
    b) A scope that is isolated from all other scopes
    c) A scope that is only accessible from a specific controller

Answer: a) A scope that is shared by all controllers in an application

13. What is a module in AngularJS?
    a) A function that returns an object
    b) A JavaScript file
    c) A predefined object in AngularJS

Answer: a) A function that returns an object

14. What is the difference between $http and $resource in AngularJS?
    a) $http is used for read-only data, while $resource is used for both read and write operations.
    b) $http is used for both read and write operations, while $resource is used for read-only data.
    c) $http and $resource are identical in functionality.

Answer: a) $http is used for read-only data, while $resource is used for both read and write operations.

15. What is dependency injection in AngularJS?
    a) A way of passing dependencies to a function
    b) A way of injecting dependencies into a controller
    c) A way of defining dependencies in a module

Answer: a) A way of passing dependencies to a function

16. What is the use of ng-model-options directive in AngularJS?
    a) To define options for ng-model directive
    b) To define options for ng-repeat directive
    c) To define options for ng-show directive

Answer: a) To define options for ng-model directive

17. What is the difference between ng-if and ng-show in AngularJS?
    a) ng-if removes the element from the DOM, while ng-show hides the element.
    b) ng-show removes the element from the DOM, while ng-if hides the element.
    c) ng-if and ng-show are identical in functionality.

Answer: a) ng-if removes the element from the DOM, while ng-show hides the element.

18. What is the use of $q service in AngularJS?
    a) To create promises
    b) To create controllers
    c) To create directives

Answer: a) To create promises

19. What is the use of dependency injection in AngularJS?
    a) To decouple modules from each other
    b) To couple modules together
    c) To reduce the size of modules

Answer: a) To decouple modules from each other

20. What is angular.bootstrap() method in AngularJS?
    a) A method to manually bootstrap an AngularJS application
    b) A method to define a controller
    c) A method to define a dependency injection

Answer: a) A method to manually bootstrap an AngularJS application

21. What is the use of ng-options in AngularJS?
    a) To bind a drop-down list to a model
    b) To define options for ng-if directive
    c) To define options for ng-show directive

Answer: a) To bind a drop-down list to a model

22. Which built-in directive is used to bind HTML content in AngularJS?
    a) ng-bind
    b) ng-model
    c) ng-repeat

Answer: a) ng-bind

23. What is $http service in AngularJS?
    a) A service to make HTTP requests
    b) A service to create controllers
    c) A service to create directives

Answer: a) A service to make HTTP requests

24. What is AngularJS filter?
    a) A piece of code that transforms the data
    b) A part of an AngularJS module
    c) A type of HTML template

Answer: a) A piece of code that transforms the data

25. What is the use of ng-submit directive in AngularJS?
    a) To define a model property
    b) To bind HTML elements to a model
    c) To handle form submission

Answer: c) To handle form submission

26. What is the use of $routeParams service in AngularJS?
    a) To get the value of route parameters
    b) To create a new route
    c) To define a dependency injection

Answer: a) To get the value of route parameters

27. What is the use of ng-mouseover directive in AngularJS?
    a) To handle mouse hover event
    b) To handle mouse click event
    c) To handle mouse wheel event

Answer: a) To handle mouse hover event

28. What is the use of ng-blur directive in AngularJS?
    a) To bind HTML elements
    b) To handle button press event
    c) To handle input element losing focus

Answer: c) To handle input element losing focus

29. What is the use of ng-style directive in AngularJS?
    a) To define a model property
    b) To bind HTML elements to a model
    c) To set CSS styles dynamically

Answer: c) To set CSS styles dynamically

30. What is the use of ng-cloak directive in AngularJS?
    a) To set styles for elements that have not been loaded yet
    b) To hide elements that have not been loaded yet
    c) To prevent elements from flashing before the AngularJS application is fully loaded

Answer: c) To prevent elements from flashing before the AngularJS application is fully loaded

31. What is the use of $rootScope.$broadcast() method in AngularJS?
    a) To broadcast an event to all child scopes
    b) To broadcast an event to all parent scopes
    c) To broadcast an event to a specific scope

Answer: a) To broadcast an event to all child scopes

32. What is $location service in AngularJS?
    a) A service to manipulate the URL
    b) A service to create controllers
    c) A service to create directives

Answer: a) A service to manipulate the URL

33. What is the use of ng-bind-html directive in AngularJS?
    a) To bind text content to HTML
    b) To bind HTML content to a model
    c) To bind HTML content to HTML

Answer: b) To bind HTML content to a model

34. What is the use of angular.module() method in AngularJS?
    a) To define a module
    b) To define a controller
    c) To define a directive

Answer: a) To define a module

35. What is the purpose of ng-include directive in AngularJS?
    a) To include external HTML templates to AngularJS application
    b) To include JavaScript files to AngularJS application
    c) To include CSS files to AngularJS application

Answer: a) To include external HTML templates to AngularJS application

36. What is the use of ng-bind-template directive in AngularJS?
    a) To bind text content to HTML
    b) To bind HTML content to a model
    c) To bind multiple expressions to a template

Answer: c) To bind multiple expressions to a template

37. What is the use of ng-init directive in AngularJS?
    a) To execute code when an element is initialized
    b) To define a model property
    c) To bind HTML elements to a model

Answer: a) To execute code when an element is initialized

38. What is $routeProvider in AngularJS?
    a) A service to define routes
    b) A service to define controllers
    c) A service to define directives

Answer: a) A service to define routes

39. What is the use of ng-view directive in AngularJS?
    a) To define a view template
    b) To define a controller
    c) To define a directive

Answer: a) To define a view template

40. What is the use of ng-class directive in AngularJS?
    a) To define a model property
    b) To bind HTML elements to a model
    c) to apply CSS classes dynamically

Answer: c) to apply CSS classes dynamically

41. What is the use of $watch service in AngularJS?
    a) To watch for changes in a model property
    b) To create a new model property
    c) To define a dependency injection

Answer: a) To watch for changes in a model property

42. What is the use of ng-form directive in AngularJS?
    a) To define a form element
    b) To define a model property
    c) To bind HTML elements to a model

Answer: a) To define a form element

43. What is the use of $filter service in AngularJS?
    a) To create a new filter
    b) To apply a filter to an expression
    c) To define a module

Answer: b) To apply a filter to an expression

44. What is the use of $timeout service in AngularJS?
    a) To set a timer
    b) To create a controller
    c) To define a directive

Answer: a) To set a timer

45. What is the use of $locationProvider service in AngularJS?
    a) To configure the URL routing
    b) To create a new controller
    c) To define a new directive

Answer: a) To configure the URL routing

46. What is the use of ng-message directive in AngularJS?
    a) To display error messages for form validation
    b) To display success messages for form validation
    c) To display warning messages for form validation

Answer: a) To display error messages for form validation

47. What is the use of $httpBackend service in AngularJS?
    a) To mock HTTP requests for testing purposes
    b) To create a new HTTP request
    c) To create a new controller

Answer: a) To mock HTTP requests for testing purposes

48. What is the use of $anchorScroll service in AngularJS?
    a) To scroll to a specific element in the page
    b) To create a new module
    c) To define a new directive

Answer: a) To scroll to a specific element in the page

49. What is the use of ng-readonly directive in AngularJS?
    a) To make an input element read-only
    b) To make an input element writeable
    c) To remove an input element

Answer: a) To make an input element read-only

50. What is the use of $compile service in AngularJS?
    a) To create a new directive
    b) To compile HTML templates
    c) To create a new filter

Answer: b) To compile HTML templates

1. What does the “$” symbol represent in bash scripting?
   A) Comment
   B) Variable
   C) Function
   D) Command

Answer: B

2. Which command is used to make a directory in bash scripting?
   A) cd
   B) ls
   C) mkdir
   D) touch

Answer: C

3. What does the command “chmod” do in bash scripting?
   A) Changes ownership of a file
   B) Creates a new file
   C) Changes permissions of a file
   D) Deletes a file

Answer: C

4. Which command is used to display the contents of a file in bash scripting?
   A) cat
   B) echo
   C) ls
   D) mkdir

Answer: A

5. What is a shebang in bash scripting?
   A) A comment
   B) A variable
   C) A function
   D) A directive

Answer: D

6. What is the purpose of an if statement in bash scripting?
   A) To create a loop
   B) To define a function
   C) To test a condition
   D) To display output

Answer: C

7. Which command is used to remove a directory in bash scripting?
   A) rmdir
   B) rm
   C) mv
   D) ln

Answer: A

8. What does the command “grep” do in bash scripting?
   A) Searches for a pattern in a file
   B) Creates a new file
   C) Displays the contents of a file
   D) Changes permissions of a file

Answer: A

9. What is the purpose of a while loop in bash scripting?
   A) To create a loop
   B) To define a function
   C) To test a condition
   D) To display output

Answer: A

10. How do you assign a value to a variable in bash scripting?
    A) Variable = value
    B) $Variable = value
    C) Variable : value
    D) $Variable : value

Answer: A

11. Which command is used to move a file in bash scripting?
    A) cp
    B) rm
    C) mv
    D) ln

Answer: C

12. What is the purpose of a for loop in bash scripting?
    A) To create a loop
    B) To define a function
    C) To test a condition
    D) To display output

Answer: A

13. What does the command “echo” do in bash scripting?
    A) Searches for a pattern in a file
    B) Displays the contents of a file
    C) Changes permissions of a file
    D) Displays output

Answer: D

14. Which command is used to copy a file in bash scripting?
    A) cp
    B) rm
    C) mv
    D) ln

Answer: A

15. What is the purpose of a case statement in bash scripting?
    A) To test a condition
    B) To create a loop
    C) To define a function
    D) To display output

Answer: A

16. What does the command “cd” do in bash scripting?
    A) Changes ownership of a file
    B) Creates a new file
    C) Changes to a different directory
    D) Deletes a file

Answer: C

17. Which command is used to find the current working directory in bash scripting?
    A) pwd
    B) ls
    C) cd
    D) touch

Answer: A

18. What is a function in bash scripting?
    A) A command that performs a specific task
    B) A variable that stores a value
    C) A conditional statement
    D) A loop

Answer: A

19. What does the command “tee” do in bash scripting?
    A) Displays output
    B) Copies input to output
    C) Edits a file
    D) Moves a file

Answer: B

20. What is the purpose of a do-while loop in bash scripting?
    A) To create a loop
    B) To define a function
    C) To test a condition
    D) To display output

Answer: A

21. Which command is used to create a file in bash scripting?
    A) cp
    B) rm
    C) mv
    D) touch

Answer: D

22. What does the command “sed” do in bash scripting?
    A) Searches for a pattern in a file
    B) Edits a file
    C) Displays the contents of a file
    D) Changes permissions of a file

Answer: B

23. What is the difference between single and double quotes in bash scripting?
    A) Single quotes prevent variable expansion, double quotes don’t
    B) Double quotes prevent variable expansion, single quotes don’t
    C) There is no difference
    D) Both prevent variable expansion

Answer: A

24. Which command is used to get the length of a string in bash scripting?
    A) strlen
    B) $length
    C) length
    D) expr length

Answer: D

25. What does the command “wc” do in bash scripting?
    A) Edits a file
    B) Displays the contents of a file
    C) Counts the number of lines, words, and characters in a file
    D) Changes permissions of a file

Answer: C

26. What is the purpose of the “shift” command in bash scripting?
    A) To delete variables
    B) To move variables to the left
    C) To move variables to the right
    D) To change variable values

Answer: B

27. Which command is used to concatenate files in bash scripting?
    A) cp
    B) rm
    C) cat
    D) ln

Answer: C

28. What is the purpose of the “export” command in bash scripting?
    A) To export variables to a new script
    B) To import variables from a script
    C) To delete variables
    D) To move variables to the left

Answer: A

29. What does the “let” command do in bash scripting?
    A) Calculates the result of an expression
    B) Displays output
    C) Edits a file
    D) Moves a file

Answer: A

30. What is a comment in bash scripting?
    A) A directive
    B) A variable
    C) A function
    D) Text that is ignored by the interpreter

Answer: D

31. Which command is used to remove a file in bash scripting?
    A) mkdir
    B) rmdir
    C) rm
    D) ln

Answer: C

32. What does the command “cut” do in bash scripting?
    A) Cuts a file into pieces
    B) Displays the contents of a file
    C) Edits a file
    D) Cuts out specific fields from a file

Answer: D

33. What is the purpose of the “break” command in bash scripting?
    A) To exit a loop
    B) To enter a loop
    C) To continue to the next iteration of a loop
    D) To display output

Answer: A

34. Which command is used to display the environment variables in bash scripting?
    A) printenv
    B) env
    C) set
    D) export

Answer: C

35. What does the “continue” command do in bash scripting?
    A) Skips to the next iteration of a loop
    B) Exits a loop
    C) Enters a loop
    D) Displays output

Answer: A

36. What is the purpose of the “read” command in bash scripting?
    A) Reads input from the user
    B) Displays output
    C) Edits a file
    D) Moves a file

Answer: A

37. Which command is used to search for a file in bash scripting?
    A) find
    B) grep
    C) locate
    D) search

Answer: A

38. What is the purpose of the “source” command in bash scripting?
    A) To execute a script within a script
    B) To import variables from a script
    C) To delete variables
    D) To move variables to the right

Answer: A

39. Which command is used to compare two files in bash scripting?
    A) diff
    B) cmp
    C) comp
    D) compare

Answer: A

40. What does the “declare” command do in bash scripting?
    A) Declares a variable
    B) Deletes a variable
    C) Moves a variable to the left
    D) Moves a variable to the right

Answer: A

41. Which command is used to redirect the output of a command to a file in bash scripting?
    A) >
    B) <
    C) |
    D) &

Answer: A

42. What is the purpose of the “sleep” command in bash scripting?
    A) To pause the script for a specified number of seconds
    B) To delete variables
    C) To move variables to the left
    D) To move variables to the right

Answer: A

43. Which command is used to rename a file in bash scripting?
    A) mv
    B) cp
    C) ln
    D) rm

Answer: A

44. What is the purpose of the “until” statement in bash scripting?
    A) To create a loop
    B) To test a condition
    C) To display output
    D) To define a function

Answer: A

45. Which command is used to display the contents of a file backwards in bash scripting?
    A) cat
    B) tac
    C) bacy
    D) back

Answer: B

46. What is the purpose of the “basename” command in bash scripting?
    A) To get the name of a file without the directory path
    B) To get the directory path of a file
    C) To get the length of a string
    D) To concatenate files

Answer: A

47. Which command is used to display the top 10 lines of a file in bash scripting?
    A) head
    B) tail
    C) more
    D) less

Answer: A

48. What is the purpose of the “cut” command in bash scripting?
    A) To cut out specific fields from a file
    B) To search for a pattern in a file
    C) To display the contents of a file
    D) To concatenate files

Answer: A

49. Which command is used to sort the lines of a file in bash scripting?
    A) sort
    B) srt
    C) sor
    D) fsort

Answer: A

50. What does the command “awk” do in bash scripting?
    A) Searches for a pattern in a file
    B) Edits a file
    C) Displays the contents of a file
    D) Analyzes and manipulates text files

Answer: D

1) What is Nagios?
a) A network monitoring system
b) A database management system
c) A web server framework

Answer: a) A network monitoring system

2) Which protocol does Nagios use for monitoring?
a) SMTP
b) SNMP
c) FTP

Answer: b) SNMP

3) What is the main configuration file in Nagios?
a) nagios.cfg
b) nagios.conf
c) nagios.ini

Answer: a) nagios.cfg

4) How often does Nagios perform checks by default?
a) Every minute
b) Every 5 minutes
c) Every 15 minutes

Answer: b) Every 5 minutes

5) What is the command to verify the Nagios configuration files?
a) nagios -v
b) nagios -c
c) nagios -s

Answer: a) nagios -v

6) Which plugin is used for monitoring disk usage?
a) check_disk
b) check_cpu
c) check_memory

Answer: a) check_disk

7) Which plugin is used for monitoring network ports?
a) check_tcp
b) check_udp
c) check_http

Answer: a) check_tcp

8) What is the default port for Nagios web interface?
a) 80
b) 443
c) 8080

Answer: c) 8080

9) Which command is used to restart the Nagios service?
a) service nagios restart
b) systemctl restart nagios
c) restart nagios service

Answer: b) systemctl restart nagios

10) Which plugin is used for monitoring CPU usage?
a) check_cpu
b) check_memory
c) check_disk

Answer: a) check_cpu

11) Which plugin is used for monitoring memory usage?
a) check_memory
b) check_cpu
c) check_disk

Answer: a) check_memory

12) Which plugin is used for monitoring HTTP errors?
a) check_http
b) check_tcp
c) check_udp

Answer: a) check_http

13) Which plugin is used for monitoring ping response time?
a) check_ping
b) check_tcp
c) check_udp

Answer: a) check_ping

14) Which command is used to check the status of Nagios service?
a) service nagios status
b) systemctl status nagios
c) status nagios service

Answer: b) systemctl status nagios

15) Which file is used for defining host configurations in Nagios?
a) hosts.cfg
b) services.cfg
c) timeperiods.cfg

Answer: a) hosts.cfg

16) Which file is used for defining service configurations in Nagios?
a) services.cfg
b) hosts.cfg
c) timeperiods.cfg

Answer: a) services.cfg

17) Which plugin is used for monitoring DNS resolution?
a) check_dns
b) check_http
c) check_tcp

Answer: a) check_dns

18) Which plugin is used for monitoring SSH service?
a) check_ssh
b) check_scp
c) check_telnet

Answer: a) check_ssh

19) What is the command to check the version of Nagios?
a) nagios -v
b) nagios -V
c) nagios -version

Answer: b) nagios -V

20) Which plugin is used for monitoring MySQL database?
a) check_mysql
b) check_http
c) check_tcp

Answer: a) check_mysql

21) Which file is used for storing the log files in Nagios?
a) nagios.log
b) nagios.txt
c) nagios.dlog

Answer: a) nagios.log

22) Which plugin is used for monitoring Apache web server?
a) check_http
b) check_tcp
c) check_udp

Answer: a) check_http

23) Which plugin is used for monitoring FTP service?
a) check_ftp
b) check_sftp
c) check_tftp

Answer: a) check_ftp

24) Which file is used for defining time periods in Nagios?
a) timeperiods.cfg
b) hosts.cfg
c) services.cfg

Answer: a) timeperiods.cfg

25) What is the command to check the syntax of Nagios configuration files?
a) nagios -c
b) nagios -s
c) nagios -v

Answer: a) nagios -c

26) Which plugin is used for monitoring POP3 service?
a) check_pop
b) check_imap
c) check_smtp

Answer: a) check_pop

27) Which plugin is used for monitoring NFS service?
a) check_nfs
b) check_http
c) check_tcp

Answer: a) check_nfs

28) What is the command to check the status of Nagios services and hosts?
a) nagios -s
b) nagios -h
c) nagios -a

Answer: c) nagios -a

29) Which plugin is used for monitoring Active Directory service?
a) check_ad
b) check_ldap
c) check_http

Answer: b) check_ldap

30) Which file is used for defining contact groups in Nagios?
a) contactgroups.cfg
b) contacts.cfg
c) services.cfg

Answer: a) contactgroups.cfg

31) What is the command to check the uptime of a host in Nagios?
a) check_uptime
b) check_load
c) check_cpu

Answer: a) check_uptime

32) Which plugin is used for monitoring DNS server zones?
a) check_zone
b) check_dns
c) check_http

Answer: a) check_zone

33) What is the command to check the status of a specific service in Nagios?
a) check_service
b) check_status
c) check_snmp

Answer: c) check_snmp

34) Which plugin is used for monitoring PostgreSQL database?
a) check_postgres
b) check_mysql
c) check_http

Answer: a) check_postgres

35) Which file is used for defining command configurations in Nagios?
a) commands.cfg
b) services.cfg
c) timeperiods.cfg

Answer: a) commands.cfg

36) What is the command to check the network connectivity in Nagios?
a) check_network
b) check_snmp
c) check_ping

Answer: c) check_ping

37) Which plugin is used for monitoring NTP service?
a) check_ntp
b) check_http
c) check_tcp

Answer: a) check_ntp

38) What is the command to check the status of a specific host in Nagios?
a) check_host
b) check_status
c) check_cpu

Answer: a) check_host

39) Which plugin is used for monitoring Samba service?
a) check_samba
b) check_http
c) check_tcp

Answer: a) check_samba

40) Which file is used for defining hostgroup configurations in Nagios?
a) hostgroups.cfg
b) hosts.cfg
c) services.cfg

Answer: a) hostgroups.cfg

41) What is the command to check the status of a specific service group in Nagios?
a) check_servicegroup
b) check_status
c) check_snmp

Answer: a) check_servicegroup

42) Which plugin is used for monitoring RAID status?
a) check_raid
b) check_disk
c) check_cpu

Answer: a) check_raid

43) Which plugin is used for monitoring Windows services?
a) check_nt
b) check_snmp
c) check_http

Answer: a) check_nt

44) What is the command to check the free disk space in Nagios?
a) check_freedisk
b) check_memory
c) check_disk

Answer: c) check_disk

45) Which plugin is used for monitoring SSH logins?
a) check_sshlogin
b) check_ssh
c) check_telnet

Answer: a) check_sshlogin

46) Which file is used for defining servicegroup configurations in Nagios?
a) servicegroups.cfg
b) services.cfg
c) hosts.cfg

Answer: a) servicegroups.cfg

47) What is the command to check the network latency in Nagios?
a) check_latency
b) check_cpu
c) check_ping

Answer: a) check_latency

48) Which plugin is used for monitoring Exchange Server?
a) check_exchange
b) check_smtp
c) check_http

Answer: a) check_exchange

49) Which plugin is used for monitoring Oracle database?
a) check_oracle
b) check_mysql
c) check_http

Answer: a) check_oracle

50) Which file is used for defining user configurations in Nagios?
a) contacts.cfg
b) contactgroups.cfg
c) commands.cfg

Answer: a) contacts.cfg