Mock Exams

Mock Exam 1

94%, only one question wrong which is JSONPATH

Make sure to check services creation using imperative commands as I had some confusion and I don't know really how I got them correctly

Second Attempt

100%

Mock Exam 2

43%, 4 questions wrong, which are about:

• A pod definition file is created at /root/CKA/use-pv.yaml. Make use of this manifest file and mount the persistent volume called pv-1. Ensure the pod is running and the PV is bound.

  mountPath: /data persistentVolumeClaim Name: my-pvc

• Create a new user called john. Grant him access to the cluster. John should have permission to create, list, get, update and delete pods in the development namespace . The private key exists in the location: /root/CKA/john.key and csr at /root/CKA/john.csr. Important Note: As of kubernetes 1.19, the CertificateSigningRequest object expects a signerName.

• Create a nginx pod called nginx-resolver using image nginx, expose it internally with a service called nginx-resolver-service. Test that you are able to look up the service and pod names from within the cluster. Use the image: busybox:1.28 for dns lookup. Record results in /root/CKA/nginx.svc and /root/CKA/nginx.pod

• Create a static pod on node01 called nginx-critical with image nginx and make sure that it is recreated/restarted automatically in case of a failure.

  Use /etc/kubernetes/manifests as the Static Pod path for example.

Second Attempt

85%, only wrong question was:

• Create a nginx pod called nginx-resolver using image nginx, expose it internally with a service called nginx-resolver-service. Test that you are able to look up the service and pod names from within the cluster. Use the image: busybox:1.28 for dns lookup. Record results in /root/CKA/nginx.svc and /root/CKA/nginx.pod

I didn't nslookup on the service, just nslookup'd the pod

Third Attempt

Same issue as before when resolving services, we must use the service name nslookup <service-name>

Mock Exam 3

Wrong:

Q1, Q2, Q5

Second Attempt

So important notes:

• In network policy, make sure to note how it was done, it has some serious confusion (I had to get back to the video solution for it.

We have deployed a new pod called np-test-1 and a service called np-test-service. Incoming connections to this service are not working. Troubleshoot and fix it. Create NetworkPolicy, by the name ingress-to-nptest that allows incoming connections to the service over port 80.

Important: Don't delete any current objects deployed.