Docker Swarm MCQs with answers Page - 4

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 feature stores sensitive data such as passwords directly in Swarm’s Raft store?

  • (A) Configs
  • (B) Volumes
  • (C) Secrets
  • (D) Labels

A

Admin • 828.03K Points
Coach

Q. What scheduler strategy spreads tasks evenly across nodes by default?

  • (A) binpack
  • (B) spread
  • (C) random
  • (D) priority

A

Admin • 828.03K Points
Coach

Q. Which command rolls back a service to the previous working configuration?

  • (A) docker service revert <service>
  • (B) docker service rollback <service>
  • (C) docker service undo <service>
  • (D) docker swarm rollback <service>

A

Admin • 828.03K Points
Coach

Q. What is the minimum recommended number of manager nodes for high availability?

  • (A) 1
  • (B) 2
  • (C) 3
  • (D) 5

A

Admin • 828.03K Points
Coach

Q. Which flag specifies the maximum number of task failures allowed during an update before rollback?

  • (A) --update-max-failure-ratio
  • (B) --update-monitor
  • (C) --rollback-parallelism
  • (D) --health-failures

A

Admin • 828.03K Points
Coach

Q. Which built-in network handles external load-balanced traffic to Swarm services?

  • (A) ingress
  • (B) frontend
  • (C) gateway
  • (D) macvlan

A

Admin • 828.03K Points
Coach

Q. How can you label a node for placement decisions?

  • (A) docker node label add <node> key=value
  • (B) docker node tag <node> key=value
  • (C) docker swarm label <node> key=value
  • (D) docker node set-label <node> key=value

A

Admin • 828.03K Points
Coach

Q. What field in a service definition tells Swarm to recreate tasks if they exit?

  • (A) restart_policy
  • (B) update_config
  • (C) rollback_config
  • (D) task_template

A

Admin • 828.03K Points
Coach

Q. Which command displays detailed information about a single service, including its update status?

  • (A) docker service ps <service>
  • (B) docker service inspect <service>
  • (C) docker service logs <service>
  • (D) docker service status <service>

A

Admin • 828.03K Points
Coach

Q. What Swarm feature allows you to mount immutable configuration files into containers?

  • (A) Secrets
  • (B) Configs
  • (C) Volumes
  • (D) Labels

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