Linux Foundation Kubernetes Administrator CKA Questions & Answers

• Question 1:

  SIMULATION

  Monitor the logs of pod foo and:

  1. Extract log lines corresponding to error

  2. unable-to-access-website Write them to　/opt/KULM00201/foo

  

  Correct Answer: Check the answer in explanation.

  

  

• Question 2:

  SIMULATION

  List all persistent volumes sorted by capacity, saving the full kubectl output to /opt/KUCC00102/volume_list. Use kubectl 's own functionality for sorting the output, and do not manipulate it any further.

  Correct Answer: Check the answer in explanation.

  Solution

  

• Question 3:

  SIMULATION Ensure a single instance of pod nginx is running on each node of the Kubernetes cluster where nginx also represents the Image name which has to be used. Do not override any taints currently in place. Use DaemonSet to complete this task and use ds-kusc00201 as DaemonSet name.

  Correct Answer: Check the answer in explanation.

  Solution

  

  

  

  

• Question 4:

  SIMULATION

  Perform the following tasks: Add an init container to hungry-bear (which has been defined in spec file /opt/KUCC00108/pod- spec-KUCC00108.yaml) The init container should create an empty file named /workdir/calm.txt If /workdir/calm.txt is not detected, the pod should exit Once the spec file has been updated with the init container definition, the pod should be created

  Correct Answer: Check the answer in explanation.

  

  

  

• Question 5:

  SIMULATION

  

  Create a pod named kucc8 with a single app container for each of the following images running inside (there may be between 1 and 4 images specified): nginx + redis + memcached.

  Correct Answer: Check the answer in explanation.

  

  

• Question 6:

  SIMULATION

  Schedule a pod as follows:

  1.

  Name: nginx-kusc00101

  2.

  Image: nginx

  3.

  Node selector: disk=ssd

  Correct Answer: Check the answer in explanation.

  

  

  

• Question 7:

  SIMULATION

  Create a deployment as follows:

  1.

  Name: nginx-app

  2.

  Using container nginx with version 1.11.10-alpine

  3.

  The deployment should contain 3 replicas

  Next, deploy the application with new version 1.11.13-alpine, by performing a rolling update. Finally, rollback that update to the previous version 1.11.10-alpine.

  Correct Answer: Check the answer in explanation.

  Solution

  

  

  

• Question 8:

  SIMULATION

  Create and configure the service front-end-service so it's accessible through NodePort and routes to the existing pod named front-end.

  Correct Answer: Check the answer in explanation.

  Solution

  

• Question 9:

  SIMULATION Create a pod as follows: Name: mongo Using Image: mongo In a new Kubernetes namespace named: my-website

  Correct Answer: Check the answer in explanation.

  Solution

  

• Question 10:

  SIMULATION

  Create a deployment spec file that will:

  Launch 7 replicas of the nginx Image with the label app_runtime_stage=dev

  deployment name: kual00201

  Save a copy of this spec file to /opt/KUAL00201/spec_deployment.yaml (or /opt/KUAL00201/spec_deployment.json).

  When you are done, clean up (delete) any new Kubernetes API object that you produced during this task.

  Correct Answer: Check the answer in explanation.