DCA Communication & Stakeholder Relations 2

Question 1

A development team asks how containers in different Docker networks can communicate. What is the correct approach?

Accepted Answer

Connect them to the same overlay network

Answer

Containers in different networks communicate by connecting them to a shared overlay or bridge network.

Question 2

A stakeholder requests a Docker Swarm cluster status report. Which command provides a high-level overview of nodes?

Accepted Answer

docker node ls

Answer

`docker node ls` lists all nodes in the Swarm along with their availability and manager status.

Question 3

A DevOps team needs to communicate service health to operations stakeholders. Which Docker Swarm feature provides built-in service health information?

Accepted Answer

Health checks defined in the service spec

Answer

Health checks in the service spec allow Docker Swarm to report and act on container health states automatically.

Question 4

When documenting container dependencies for stakeholders, which Docker Compose key explicitly defines startup order communication?

Accepted Answer

depends_on

Answer

`depends_on` defines service startup order and dependency relationships in Docker Compose.

Question 5

A security team requires that inter-service communication be encrypted in a Docker Swarm. What should you enable?

Accepted Answer

Mutual TLS for overlay networks

Answer

Docker Swarm overlay networks support mutual TLS encryption for inter-node and inter-service communication.

DCA - Docker Certified Associate Exam Practice Test

DCA - Docker Certified Associate Exam Practice Test

DCA Communication & Stakeholder Relations 2