KCNA Practice Questions

A.  

Stale or expired CertificateSigningRequests (CSRs) and old deployments.

B.  

Nodes deleted by a cloud controller manager and obsolete logs from the kubelet.

C.  

Unused container and container images, and obsolete logs from the kubelet.

D.  

Terminated pods, completed jobs, and objects without owner references.

A.  

admin

B.  

sysadmin

C.  

root

D.  

default

A.  

Network resources and liveness probes.

B.  

Storage and container image registry.

C.  

Storage and network resources.

D.  

Network resources and Dockerfiles.

A.  

A Helm chart is a collection of YAML files bundled in a tar.gz file and can be applied without decompressing it.

B.  

A Helm chart is a collection of JSON files and contains all the resource definitions to run an application on Kubernetes.

C.  

A Helm chart is a collection of YAML files that can be applied on Kubernetes by using the kubectl tool.

D.  

A Helm chart is similar to a package and contains all the resource definitions to run an application on Kubernetes.

A.  

An open source dashboard for Kubernetes.

B.  

A package manager for Kubernetes applications.

C.  

A custom scheduler for Kubernetes.

D.  

An end-to-end testing project for Kubernetes applications.

A.  

Cloud Native Architecture revolves around containers, microservices and pipelines.

B.  

Cloud Native Architecture removes constraints to rapid innovation.

C.  

Cloud Native Architecture is modern for application deployment and pipelines.

D.  

Cloud Native Architecture is a bleeding edge technology and service.

A.  

2

B.  

3

C.  

4

D.  

5

A.  

Kubernetes will create the container but it will fail with CrashLoopBackOff.

B.  

Kubernetes does not allow containers to be created without request values, causing eviction.

C.  

Kubernetes copies the specified limit and uses it as the requested value for the resource.

D.  

Kubernetes chooses a random value and uses it as the requested value for the resource.

A.  

Pods can only communicate with Pods exposed via a Service.

B.  

Pods can communicate with all Pods without NAT.

C.  

The Pod IP is only visible inside a Pod.

D.  

The Service IP is used for the communication between Services.

A.  

No, you can only expose one port per each Service.

B.  

Yes, but you must specify an unambiguous name for each port.

C.  

Yes, the only requirement is to use different port numbers.

D.  

No, because the only port you can expose is port number 443.