Docker Swarm MCQs with answers Page - 3

You will find multiple-choice questions (MCQs) related to #Docker Swarm here. Go through these questions to prepare effectively for your upcoming exams and interviews.

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A

Admin • 828.03K Points
Coach

Q. Which command shows whether the current Docker engine is part of an active Swarm?

  • (A) docker swarm status
  • (B) docker node ls
  • (C) docker info
  • (D) docker swarm inspect

A

Admin • 828.03K Points
Coach

Q. What flag is used with docker swarm init to advertise the manager’s reachable address?

  • (A) --advertise-addr
  • (B) --listen-addr
  • (C) --manager-addr
  • (D) --announce

A

Admin • 828.03K Points
Coach

Q. Which Swarm service mode ensures one task runs on every eligible node?

  • (A) replicated
  • (B) global
  • (C) constraint
  • (D) daemon

A

Admin • 828.03K Points
Coach

Q. What is the command to view the current join tokens for a Swarm?

  • (A) docker swarm token list
  • (B) docker node token
  • (C) docker swarm join-token
  • (D) docker service token

A

Admin • 828.03K Points
Coach

Q. Which update failure action rolls back a service to the previous version automatically?

  • (A) pause
  • (B) continue
  • (C) rollback
  • (D) shutdown

A

Admin • 828.03K Points
Coach

Q. Which scheduling filter pins a service to nodes with a specific label?

  • (A) affinity
  • (B) placement constraint
  • (C) spread
  • (D) preference

A

Admin • 828.03K Points
Coach

Q. Which command drains a node so it stops receiving new tasks?

  • (A) docker node update --availability drain <node>
  • (B) docker node disable <node>
  • (C) docker swarm drain <node>
  • (D) docker node demote <node>

A

Admin • 828.03K Points
Coach

Q. What built-in network encrypts container traffic automatically between Swarm nodes?

  • (A) ingress
  • (B) host
  • (C) encrypted overlay
  • (D) bridge

A

Admin • 828.03K Points
Coach

Q. Which directive in a service update controls how many tasks are updated simultaneously?

  • (A) --update-parallelism
  • (B) --rollback-delay
  • (C) --replicas
  • (D) --limit-rate

A

Admin • 828.03K Points
Coach

Q. How can you pause a rolling update for a Swarm service?

  • (A) docker service pause <service>
  • (B) docker service update --rollback <service>
  • (C) docker service update --update-pause <seconds>
  • (D) docker service stop <service>

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