A development team has three replicas of a frontend Pod. They want the frontend to reach a backend API that also has three replicas. The backend Pods are frequently recreated during deployments, so their IPs change. The team wants a stable way for the frontend to reach the backend without hardcoding IPs. What should they configure?

Create a ClusterIP Service for the backend and have the frontend connect to the Service's DNS name.

Create a NetworkPolicy that allows the frontend to reach the backend Pods by their labels.

Create a headless Service for the backend and have the frontend connect to one of the backend Pod IPs directly.

Create an ExternalName Service that points to the backend Pods' IPs.

A company exposes a web application via an Ingress resource. The Ingress controller is running, but external traffic is not reaching the application. The Ingress resource points to a Service named 'web' in the 'default' namespace. The Service has a selector that matches the application Pods. Which of the following is the MOST likely reason for the failure?

The Ingress resource does not have a default backend defined.

The Service 'web' has multiple ports.

The Ingress controller is not exposed to the external network.

The Service 'web' is of type ClusterIP.

Certified Kubernetes Administrator (CKA)

Domain 5Objective 1

Understand Connectivity Between Pods CKA Practice Questions (Page 1)

Part of the Servicing and Networking domain, which accounts for 20% of the CKA exam. Linux Foundation does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 2–3 from this objective — we provide 27 practice questions to prepare you well beyond it. (estimate)

27questions here

6free pages

8concepts

20%of the exam

Questions 1–5

1foundation · easy
Which Kubernetes resource is used to define HTTP/HTTPS routing rules for external access to Services?
Select an answer first
2application · medium
A development team has three replicas of a frontend Pod. They want the frontend to reach a backend API that also has three replicas. The backend Pods are frequently recreated during deployments, so their IPs change. The team wants a stable way for the frontend to reach the backend without hardcoding IPs. What should they configure?
Select an answer first
3foundation · easy
Which Service type is used to expose a Service on a static port on each node's IP address, allowing external access without a cloud load balancer?
Select an answer first
4expert · hard
A company exposes a web application via an Ingress resource. The Ingress controller is running, but external traffic is not reaching the application. The Ingress resource points to a Service named 'web' in the 'default' namespace. The Service has a selector that matches the application Pods. Which of the following is the MOST likely reason for the failure?
Select an answer first
5foundation · easy
What is the fully qualified DNS name for a Service named `api` in the namespace `backend`?
Select an answer first

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Understand Connectivity Between Pods CKA Practice Questions (Page 1)

Questions 1–5

Which Kubernetes resource is used to define HTTP/HTTPS routing rules for external access to Services?

Which Service type is used to expose a Service on a static port on each node's IP address, allowing external access without a cloud load balancer?

What is the fully qualified DNS name for a Service named `api` in the namespace `backend`?

Keep studying — Servicing and Networking