CDP CDP Containerization & Orchestration

Question 1

Which Kubernetes object is used to ensure a specified number of pod replicas are running at any given time?

Accepted Answer

ReplicaSet

Answer

A ReplicaSet maintains a stable set of replica pods running at any given time to guarantee pod availability.

Question 2

In Docker, what is the primary purpose of a multi-stage build?

Accepted Answer

To reduce the final image size by separating build and runtime environments

Answer

Multi-stage builds allow you to use multiple FROM instructions, copying only necessary artifacts to the final image, resulting in smaller, leaner production images.

Question 3

Which Kubernetes resource allows you to expose a set of pods as a network service with a stable DNS name?

Accepted Answer

Service

Answer

A Kubernetes Service provides a stable IP address and DNS name that abstracts access to a dynamic set of pods.

Question 4

What does a Kubernetes Namespace primarily provide?

Accepted Answer

A mechanism to isolate resources within a single cluster

Answer

Namespaces provide a scope for names and isolate resources within a cluster, enabling multi-team or multi-environment separation.

Question 5

Which container orchestration strategy gradually replaces old pod instances with new ones to minimize downtime?

Accepted Answer

Rolling update

Answer

A rolling update incrementally replaces old pod instances with new ones, maintaining service availability throughout the update process.

CDP - Certified DevOps Practitioner Practice Test

CDP - Certified DevOps Practitioner Practice Test

CDP CDP Containerization & Orchestration