1. What is Traefik?
a) A container orchestration tool
b) A load balancer and reverse proxy software
c) A database management system
Answer: b) A load balancer and reverse proxy software
2. Which features does Traefik provide?
a) SSL/TLS termination
b) Circuit breaking
c) Request routing based on HTTP headers
d) All of the above
Answer: d) All of the above
3. What protocols does Traefik support?
a) HTTP
b) TCP
c) UDP
d) All of the above
Answer: d) All of the above
4. How does Traefik handle SSL certificates?
a) Traefik generates its own SSL certificates
b) Traefik uses Let’s Encrypt SSL certificates
c) Traefik uses SSL certificates provided by the user
Answer: b) Traefik uses Let’s Encrypt SSL certificates
5. What is the advantage of using Traefik in a containerized environment?
a) Traefik can automatically detect new containers and add them to the load balancing pool
b) Traefik provides easy access to logs and metrics for containerized applications
c) Traefik can automatically generate SSL certificates for containerized applications
d) All of the above
Answer: d) All of the above
6. What kind of load balancing algorithms does Traefik support?
a) Round robin
b) Weighted round robin
c) Least connections
d) All of the above
Answer: d) All of the above
7. What is the Traefik dashboard used for?
a) To monitor the health of Traefik itself
b) To monitor the health of the backend servers
c) To configure Traefik settings
d) None of the above
Answer: a) To monitor the health of Traefik itself
8. How does Traefik handle Docker Swarm?
a) Traefik treats Docker Swarm as just another backend and applies load balancing as usual
b) Traefik uses Docker Swarm routing mesh to handle load balancing
c) Traefik does not support Docker Swarm
Answer: b) Traefik uses Docker Swarm routing mesh to handle load balancing
9. Does Traefik support Kubernetes?
a) Yes, Traefik integrates with Kubernetes natively
b) No, Traefik does not support Kubernetes
Answer: a) Yes, Traefik integrates with Kubernetes natively
10. What is the Traefik Middleware feature used for?
a) To modify the requests and responses passing through Traefik
b) To configure Traefik routing rules
c) To monitor the health of the backend servers
Answer: a) To modify the requests and responses passing through Traefik
11. What is the purpose of the Traefik Ingress Controller?
a) To route incoming HTTP traffic to the correct backend services
b) To provide detailed metrics about incoming HTTP traffic
c) To monitor the health of Traefik itself
Answer: a) To route incoming HTTP traffic to the correct backend services
12. How does Traefik handle SSL pass-through?
a) Traefik can forward SSL traffic directly to the backend servers without decrypting it
b) Traefik always decrypts the SSL traffic before forwarding it to the backend servers
c) Traefik does not support SSL pass-through
Answer: a) Traefik can forward SSL traffic directly to the backend servers without decrypting it
13. What is the Traefik Pilot feature used for?
a) To manage multiple instances of Traefik in a cluster
b) To monitor the health of backend servers
c) To configure Traefik routing rules
Answer: a) To manage multiple instances of Traefik in a cluster
14. What is the difference between Traefik and Nginx?
a) Traefik is a load balancer and reverse proxy designed for containerized environments
b) Nginx is a general-purpose web server and reverse proxy
c) Both a) and b)
Answer: c) Both a) and b)
15. How does Traefik handle circuit breaker function?
a) Traefik automatically closes circuit when it is not receiving any requests
b) Traefik can monitor HTTP status codes and slow responses, and automatically close the circuit if certain thresholds are reached
c) Traefik does not handle circuit breaker function
Answer: b) Traefik can monitor HTTP status codes and slow responses, and automatically close the circuit if certain thresholds are reached
16. Can Traefik handle websockets?
a) Yes, Traefik can handle websockets
b) No, Traefik does not support websockets
Answer: a) Yes, Traefik can handle websockets
17. What is the default port for the Traefik dashboard?
a) 80
b) 443
c) 8080
d) 8443
Answer: c) 8080
18. Which protocol does Traefik use for communication with backend servers?
a) HTTP/1.1
b) HTTP/2
c) TCP
d) UDP
Answer: a) HTTP/1.1
19. What is the Traefik Entrypoint feature used for?
a) To specify the TCP or UDP port where Traefik should listen for incoming traffic
b) To configure Traefik routing rules
c) To monitor the health of backend servers
Answer: a) To specify the TCP or UDP port where Traefik should listen for incoming traffic
20. How does Traefik handle HTTP/2?
a) Traefik can automatically upgrade incoming HTTP/1.1 requests to HTTP/2 if the backend server supports it
b) Traefik does not support HTTP/2
Answer: a) Traefik can automatically upgrade incoming HTTP/1.1 requests to HTTP/2 if the backend server supports it
21. Can Traefik use SSL certificates from sources other than Let’s Encrypt?
a) Yes, Traefik can use SSL certificates from other sources
b) No, Traefik can only use SSL certificates from Let’s Encrypt
Answer: a) Yes, Traefik can use SSL certificates from other sources
22. Which load balancing algorithm does Traefik use by default?
a) Round robin
b) Weighted round robin
c) Least connections
d) None of the above
Answer: a) Round robin
23. How does Traefik handle health checks for backend servers?
a) Traefik periodically sends HTTP requests to backend servers to check their status
b) Backend servers send health check signals to Traefik themselves
c) Traefik does not handle health checks for backend servers
Answer: a) Traefik periodically sends HTTP requests to backend servers to check their status
24. Can Traefik handle TCP-based protocols other than HTTP?
a) Yes, Traefik can handle any TCP-based protocol
b) No, Traefik can only handle HTTP-based protocols
Answer: a) Yes, Traefik can handle any TCP-based protocol
25. How does Traefik handle routing based on HTTP headers?
a) Traefik examines the HTTP headers of incoming requests and routes them based on the specified rules
b) Traefik does not support routing based on HTTP headers
Answer: a) Traefik examines the HTTP headers of incoming requests and routes them based on the specified rules
26. How does Traefik handle connection draining?
a) Traefik automatically stops sending traffic to backend servers that are marked for termination
b) Traefik does not handle connection draining
Answer: a) Traefik automatically stops sending traffic to backend servers that are marked for termination
27. What is the Traefik Retry Middleware used for?
a) To automatically retry failed requests to backend servers
b) To configure Traefik routing rules
c) To monitor the health of backend servers
Answer: a) To automatically retry failed requests to backend servers
28. What is the Traefik Forward Authentication Middleware used for?
a) To authenticate users before forwarding their requests to backend servers
b) To configure Traefik routing rules
c) To monitor the health of backend servers
Answer: a) To authenticate users before forwarding their requests to backend servers
29. How does Traefik handle server push?
a) Traefik can automatically push static assets to clients to improve page load times
b) Traefik does not support server push
Answer: a) Traefik can automatically push static assets to clients to improve page load times
30. Can Traefik handle dynamic configuration changes?
a) Yes, Traefik can handle dynamic configuration changes without restarting
b) No, Traefik cannot handle dynamic configuration changes
Answer: a) Yes, Traefik can handle dynamic configuration changes without restarting
31. What is the Traefik Dashboard Middleware used for?
a) To provide fine-grained access control to the Traefik dashboard
b) To configure Traefik routing rules
c) To monitor the health of backend servers
Answer: a) To provide fine-grained access control to the Traefik dashboard
32. How can Traefik handle SSL certificates for multiple domains?
a) Traefik can automatically request SSL certificates for new domains from Let’s Encrypt
b) Traefik requires manual configuration for each domain’s SSL certificate
Answer: a) Traefik can automatically request SSL certificates for new domains from Let’s Encrypt
33. How does Traefik handle load balancing with Kubernetes?
a) Traefik uses Kubernetes’ built-in load balancing functionality to route traffic to the correct backend services
b) Traefik cannot handle load balancing with Kubernetes
Answer: a) Traefik uses Kubernetes’ built-in load balancing functionality to route traffic to the correct backend services
34. Can Traefik handle dynamically scaling backend services?
a) Yes, Traefik can automatically detect and scale backend services
b) No, Traefik cannot handle dynamically scaling backend services
Answer: a) Yes, Traefik can automatically detect and scale backend services
35. How does Traefik handle service discovery?
a) Traefik automatically detects new backend services by querying the Kubernetes API
b) Traefik requires manual configuration for each backend service
c) Traefik does not support service discovery
Answer: a) Traefik automatically detects new backend services by querying the Kubernetes API
36. What is the Traefik TCP Middleware used for?
a) To modify the requests and responses passing through Traefik for TCP-based protocols
b) To configure Traefik routing rules for TCP-based protocols
c) To monitor the health of backend servers for TCP-based protocols
Answer: a) To modify the requests and responses passing through Traefik for TCP-based protocols
37. How does Traefik handle rate limiting?
a) Traefik can limit the number of requests per IP address or per user
b) Traefik does not support rate limiting
Answer: a) Traefik can limit the number of requests per IP address or per user
38. What is the Traefik Ping Middleware used for?
a) To monitor the health of backend servers by sending pings
b) To configure Traefik routing rules
c) To modify the requests and responses passing through Traefik
Answer: a) To monitor the health of backend servers by sending pings
39. How does Traefik handle backend servers in different availability zones?
a) Traefik can automatically route traffic to backend servers in different availability zones for resilience
b) Traefik cannot handle backend servers in different availability zones
Answer: a) Traefik can automatically route traffic to backend servers in different availability zones for resilience
40. Can Traefik handle dynamic configuration changes for health checks?
a) Yes, Traefik can handle dynamic configuration changes for health checks without restarting
b) No, Traefik requires a restart for each health check configuration change
Answer: a) Yes, Traefik can handle dynamic configuration changes for health checks without restarting
41. How does Traefik handle request/response modification?
a) Traefik uses Middleware to modify requests and responses passing through it
b) Traefik does not support request/response modification
Answer: a) Traefik uses Middleware to modify requests and responses passing through it
42. What is the Traefik HTTP Middleware used for?
a) To modify the requests and responses passing through Traefik
b) To configure Traefik routing rules for HTTP-based protocols
c) To monitor the health of backend servers for HTTP-based protocols
Answer: a) To modify the requests and responses passing through Traefik
43. How does Traefik handle TCP ports that reuse HTTP headers?
a) Traefik can differentiate between different protocols based on the TCP port number
b) Traefik cannot handle TCP ports that reuse HTTP headers
Answer: a) Traefik can differentiate between different protocols based on the TCP port number
44. What is the Traefik Metrics Middleware used for?
a) To provide detailed metrics about incoming traffic and backend server health
b) To configure Traefik routing rules
c) To modify the requests and responses passing through Traefik
Answer: a) To provide detailed metrics about incoming traffic and backend server health
45. Does Traefik support HTTP/3?
a) Yes, Traefik can handle HTTP/3 traffic
b) No, Traefik does not support HTTP/3 yet
Answer: b) No, Traefik does not support HTTP/3 yet
46. How does Traefik handle backend servers in different regions?
a) Traefik can automatically route traffic to backend servers in different regions for better performance
b) Traefik cannot handle backend servers in different regions
Answer: a) Traefik can automatically route traffic to backend servers in different regions for better performance
47. What is the Traefik Forwarded Middleware used for?
a) To extract client IP addresses from the X-Forwarded-For header
b) To configure Traefik routing rules
c) To monitor the health of backend servers
Answer: a) To extract client IP addresses from the X-Forwarded-For header
48. How does Traefik handle IPv6?
a) Traefik supports both IPv4 and IPv6 traffic
b) Traefik only supports IPv4 traffic
Answer: a) Traefik supports both IPv4 and IPv6 traffic
49. What is the Traefik Chain Middleware used for?
a) To apply multiple Middleware in a specified order
b) To configure Traefik routing rules
c) To monitor the health of backend servers
Answer: a) To apply multiple Middleware in a specified order
50. How does Traefik handle SSL ciphers?
a) Traefik can be configured to only use strong SSL ciphers
b) Traefik uses weak SSL ciphers by default
Answer: a) Traefik can be configured to only use strong SSL ciphers
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