Practice Test Geeks(CKA) Certified Kubernetes Associate Practice Test
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Container Fundamentals Flashcards

6 cards from real CKA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Container Fundamentals flashcards as text

  1. What is the primary benefit of containerization over virtual machines?

    Answer: Containers share the host OS kernel and are lighter weight

    Containers share the host operating system kernel, making them more lightweight, faster to start, and more efficient with resources compared to VMs that require a full OS.

  2. What is Docker Hub?

    Answer: A cloud-based registry for storing and sharing container images

    Docker Hub is the default public registry for Docker images, where developers can store, share, and discover container images.

  3. What is a container image?

    Answer: A read-only template containing the application and its dependencies

    A container image is a lightweight, read-only template that includes everything needed to run an application: code, runtime, libraries, and settings.

  4. What is the purpose of a Dockerfile?

    Answer: To define instructions for building a container image

    A Dockerfile contains sequential instructions that define how to build a container image, including base image, dependencies, files to copy, and commands to run.

  5. What command starts a container from an image?

    Answer: docker run

    The 'docker run' command creates and starts a new container from a specified image, optionally with configuration flags for ports, volumes, and environment variables.

  6. What is container orchestration?

    Answer: Automated management of container deployment, scaling, and networking

    Container orchestration automates deploying, managing, scaling, and networking containers across clusters of hosts, with Kubernetes being the most popular orchestration platform.

How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. docs.linuxfoundation.org — Exam format, test delivery, passing score, renewal, retake policy, score release, score validity, exam information · verified Oct 2026
  2. training.linuxfoundation.org — Eligibility, fees, test dates, time limit · verified Oct 2026