A developer runs docker pull nginx:latest on a machine where the Docker daemon is running. Which component is responsible for fetching the image from Docker Hub?

The Docker registry, which pushes the image to the local machine automatically.

The container runtime, which downloads the image and creates a container from it.

The Docker client, which directly downloads the image from Docker Hub and stores it locally.

The Docker daemon, which receives the pull request from the client and downloads the image from the registry.

Which statement best describes how containers provide isolation from the host and other containers?

Containers use kernel features like namespaces and cgroups

Each container runs its own operating system kernel

Containers are isolated by running in separate physical servers

Containers use hardware virtualization to create separate machines

How do you make a container's port accessible from outside the host?

By using the EXPOSE instruction in the Dockerfile

By using the -d option with docker run

By setting the container's IP address manually

By using the -p option with docker run

What is a Docker container?

A read-only template used to create images

A storage volume for persisting data

A virtual machine with its own kernel

What is a Docker image composed of?

A single monolithic binary file

A compressed archive of the host kernel

A running process with its own filesystem

Juniper NetworksCertified Associate, Cloud

Domain 4Objective 8

Creating Containers Using Docker JN0-214 Practice Questions (Page 3)

Part of the Cloud Virtualization domain, which makes up ~26% of our current practice bank. Juniper Networks does not publish an official question count, but from its 90-minute exam (~35–60 total, ~9–16 in this domain), expect 1–2 from this objective — we provide 30 practice questions to prepare you well beyond it. (estimate)

30questions here

6free pages

11concepts

Questions 11–15

11application · medium
A developer runs docker pull nginx:latest on a machine where the Docker daemon is running. Which component is responsible for fetching the image from Docker Hub?
Select an answer first
12foundation · easy
Which statement best describes how containers provide isolation from the host and other containers?
Select an answer first
13foundation · easy
How do you make a container's port accessible from outside the host?
Select an answer first
14foundation · easy
What is a Docker container?
Select an answer first
15foundation · easy
What is a Docker image composed of?
Select an answer first

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