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Security Questions

Practice questions for Security topic in Docker Certified Associate. 30 questions covering this domain.

30 questions7 easy13 medium10 hard
Q1
medium

A team considers exposing the Docker daemon over unauthenticated plain HTTP on a TCP port for convenience. What does Docker document about that config...

Q2
medium

On a Linux swarm node, where is a secret mounted inside a service task by default?

Q3
hard

A security team wants a containerized helper process to run with the fewest privileges needed. Which capability strategy best matches Docker security ...

Q4
medium

A service is actively using a secret. What happens if an administrator tries to remove that secret immediately?

Q5
medium

Which security feature maps container root to an unprivileged host UID range so that container root is not host UID 0?

Q6
hard

A platform engineer must use the Docker CLI and `kubectl` against a Mirantis Kubernetes Engine cluster after authenticating through the web interface....

Q7
easy

Which workload type can consume Docker secrets directly according to the official swarm secrets model?

Q8
hard

A platform admin wants one team to manage workloads only inside a specific Mirantis Kubernetes Engine namespace collection while denying broader clust...

Q9
easy

Which Linux kernel feature is primarily used by Docker to account for and limit CPU and memory usage?

Q10
medium

An application needs a non-sensitive configuration file shared with a service. Which Docker object is more appropriate than a secret?

Q11
hard

A security review covers Windows containers that consume Docker secrets. Which statement matches Docker's documented caveat?

Q12
easy

Which Linux kernel feature provides isolation such as separate process IDs and network stacks for containers?

Q13
medium

What does `docker swarm init` create for the swarm PKI unless the operator specifies an external CA?

Q14
medium

What information is contained in a swarm join token?

Q15
easy

How does Docker start containers in terms of Linux capabilities by default?

Q16
medium

What is the documented size limit for the payload of a single Docker secret?

Q17
medium

What does Docker document about the handling of swarm secrets in transit and at rest?

Q18
hard

A repository has three image enforcement rules in MSR. What must be true before an image can be pulled?

Q19
hard

An MSR administrator wants to change the registry-wide image enforcement policy for every repository. Who can do that according to Mirantis documentat...

Q20
easy

Why is Docker often described as having a major security boundary at the daemon?

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