Question 1

You are planning to migrate your Kubernetes cluster to use a different IPAM mode in Cilium. What is the recommended approach to change the IPAM mode without causing connectivity disruptions?

Options :

A : Restart the Cilium agents on all nodes after changing the IPAM mode.

B : Use the Cilium CLI to switch IPAM modes on the fly.

C : Change the IPAM mode directly in the existing cluster-s configuration.

D : Install a fresh Kubernetes cluster with the new IPAM configuration.

Answer: D

Question 2

Which limitation is currently associated with Layer 7 policies in Cilium?

Options :

A : There is a maximum limit of 40 ports with Layer 7 policies per endpoint.

B : Layer 7 policies can be applied to both ingress and egress traffic regardless of protocol.

C : Layer 7 policies can specify port ranges.

D : All protocol types are supported in Host Policies.

Answer: A

Question 3

Which method is currently not recommended for production environments when migrating Ingress resources to Gateway API?

Options :

A : Using the ingress2gateway tool

B : Gradually replacing Ingress resources with Gateway API resources

C : Manual creation of Gateway API resources

D : Creating Gateway API resources based on existing Ingress configurations

Answer: A

Question 4

What role does the Cilium Operator play when LoadBalancer IP Address Management (LB IPAM) is enabled?

Options :

A : It manages IP addresses for type: LoadBalancer services.

B : It replaces the Kubernetes service load balancer functionality entirely.

C : It automatically scales the number of LoadBalancer services based on demand.

D : It configures external load balancers in the cloud provider.

Answer: A

Question 5

If your node network is using the default PodCIDR range 10.0.0.0/8, what issue might arise in Cilium's Cluster Scope IPAM mode?

Options :

A : Loss of connectivity to other nodes.

B : Enhanced security through network isolation.

C : Improved pod-to-pod connectivity.

D : Increased IP address availability.

Answer: A

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