What is the purpose of port mapping in container networking?

To assign a static IP address to the container.

To allow external access to a container's service by mapping a host port to a container port.

To encrypt traffic between the container and the host.

To isolate the container's network from the host.

What is a network namespace in the context of containers?

A firewall rule that controls traffic to and from the container.

A mechanism to isolate a container's network stack, including its own IP addresses and routing tables.

A way to share the host's network stack with the container.

A virtual switch that connects containers to each other.

A team runs a stateful application in a container on a single host. They need to ensure data durability and also want to be able to move the application to a different host without losing data. Which storage solution best meets these requirements?

A Docker volume managed by the local Docker daemon.

A local bind mount to a directory on the current host.

A network filesystem (NFS) share mounted into the container.

A tmpfs mount for fast performance.

Kubernetes and Cloud Native Associate (KCNA)

Domain 2Objective 1

Containerization KCNA Practice Questions (Page 3)

Part of the Container Orchestration domain, which accounts for 28% of the KCNA exam. Linux Foundation does not publish an official question count, but from its 90-minute exam (~35–60 total, ~10–17 in this domain), expect 5–9 from this objective — we provide 32 practice questions to prepare you well beyond it. (estimate)

32questions here

7free pages

8concepts

28%of the exam

Questions 11–15

11foundation · easy
Which command is used to stop a running container?
Select an answer first
12foundation · easy
What is the purpose of port mapping in container networking?
Select an answer first
13foundation · easy
What is a network namespace in the context of containers?
Select an answer first
14application · medium
A company runs a multi-tenant container platform where different teams deploy containers on the same host. They want to prevent one team's container from reading the memory or processes of another team's container. Which feature is primarily responsible for this isolation?
Select an answer first
15expert · hard
A team runs a stateful application in a container on a single host. They need to ensure data durability and also want to be able to move the application to a different host without losing data. Which storage solution best meets these requirements?
Select an answer first

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Containerization KCNA Practice Questions (Page 3)

Questions 11–15

Which command is used to stop a running container?

What is the purpose of port mapping in container networking?

What is a network namespace in the context of containers?

A company runs a multi-tenant container platform where different teams deploy containers on the same host. They want to prevent one team's container from reading the memory or processes of another team's container. Which feature is primarily responsible for this isolation?

A team runs a stateful application in a container on a single host. They need to ensure data durability and also want to be able to move the application to a different host without losing data. Which storage solution best meets these requirements?

Keep studying — Container Orchestration