Question 1

In a Cloud Native Observability context, why might you choose to use Thanos or Cortex in combination with Prometheus?

Options :

A : To add long-term storage and horizontal scalability to Prometheus.

B : To replace Prometheus with a more scalable solution.

C : To integrate with a different time-series database.

D : To provide real-time alerting, replacing Prometheus Alertmanager.

Answer: A

Question 2

In a Kubernetes environment with Istio, which component is responsible for dynamically reconfiguring Envoy sidecars to route traffic to different versions of a service for canary releases?

Options :

A : Istio Citadel

B : Istio Pilot

C : Istio Mixer

D : Istio Telemetry

Answer: B

Question 3

You are the Kubernetes cluster administrator and are concerned about Pod security. You want to enforce a policy that disallows running containers as root and prevents privilege escalation. Which two Kubernetes features can help enforce these policies? (select 2)

Options :

A : PodSecurityPolicy

B : OPA-Gatekeeper

C : RBAC

D : Service Mesh

E : Node Taints

Answer: A,B

Question 4

An application that is nearing its usage limit. To increase the amount of users it can handle, you allo-cate additional memory resources to each instance of the application. What type of scaling is this?

Options :

A : Horizontal Scaling

B : Cluster Autoscaling

C : Recursive Scaling

D : Vertical Scaling

Answer: D

Question 5

Which of the following container runtime is planned to be deprecated in Kubernetes 1.20 and high-er?

Options :

A : cri-o

B : None of the options

C : docker

D : podman

E : containerd

Answer: C