Question 1

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 2

After implementing the eBPF filter to drop unencrypted pod-to-pod traffic, Constellation is deployed on AWS. The admin observes that internal health checks and node communications are also being dropped unexpectedly. What is the likely reason?

Options :

A : The encryption interface was not configured properly.

B : The Cilium Agent has failed to deploy on some nodes.

C : The IPCache is not correctly synchronized across all nodes.

D : The eBPF filter mistakenly identifies node traffic as pod traffic due to shared PodCIDR.

Answer: D

Question 3

In a scenario where you need robust load balancing at the kernel layer without relying on kube-proxy, which Cilium feature would you utilize?

Options :

A : Cilium-s network policies

B : Service Load Balancing with BGP and eBPF

C : Cilium Operator

D : Cilium CLI

Answer: B

Question 4

You are tasked with extending the Linux kernel functionality to trace system performance without introducing potential kernel instability. Which technology should you utilize?

Options :

A : Using eBPF programs to attach to kernel event hooks.

B : Deploying user-space monitoring tools exclusively.

C : Modifying the Linux kernel source code and recompiling.

D : Loading custom kernel modules directly.

Answer: A

Question 5

What additional capabilities do Cilium Network Policies (CNP) offer over standard Kubernetes Network Policies (KNP)?

Options :

A : CNPs can enforce policies at the application layer (Layer 7).

B : CNPs eliminate the need for Kubernetes labels.

C : CNPs restrict the number of pods in a namespace.

D : CNPs disable default Kubernetes Network Policies.

Answer: A