Question 1

Why is setting resource limits and requests for Kubernetes pods important to prevent internal Denial of Service scenarios?

Options :

A : To optimize the network performance of the cluster

B : To ensure even distribution of storage resources among pods

C : To prevent a single pod from consuming excessive resources, impacting overall cluster stability

D : To facilitate rapid scaling of applications in response to demand

Answer: C

Question 2

What is the role of a Certificate Authority (CA) in the PKI setup of a Kubernetes cluster?

Options :

A : To provide load balancing between different Kubernetes services

B : To manage the distribution of secrets within the Kubernetes cluster

C : To issue and manage digital certificates for secure communication within the cluster

D : To optimize network traffic routing within the Kubernetes environment

Answer: C

Question 3

Why is pod isolation crucial in a multi-tenant Kubernetes environment?

Options :

A : To optimize the load balancing of network traffic among different tenants

B : To manage the allocation of storage resources to different tenant namespaces

C : To prevent a compromised or malicious pod in one tenant environment from affecting others

D : To ensure uniform resource utilization across different tenant environments

Answer: C

Question 4

Why is it important to enable and configure Kubelet client certificate rotation in a Kubernetes cluster?

Options :

A : To improve the performance efficiency of the Kubelet

B : To ensure efficient resource allocation by the Kubelet

C : To facilitate smoother upgrades of Kubelet software

D : To enhance security through regular updating of authentication credentials

Answer: D

Question 5

What is a crucial measure in Kubernetes to secure communication and data transfer, thereby mitigating the risk posed by an attacker on the network?

Options :

A : Increasing the number of pod replicas to distribute network traffic

B : Implementing network policies to control and restrict pod-to-pod communication

C : Automating pod deployments to reduce configuration errors

D : Using load balancers to evenly distribute incoming network traffic

Answer: B