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DCA – Docker Certified Associate (DCA) Exam

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Showing 7–9 of 10 questions

Question 7

Is this a type of Linux kernel namespace that provides container isolation? Solution: Authentication

Select an option, then click Submit answer.

  • ○

    Yes
  • ○

    No
Question 8

A company's security policy specifies that development and production containers must run on separate nodes in a given Swarm cluster.

Can this be used to schedule containers to meet the security policy requirements? Solution: label contraints

Select an option, then click Submit answer.

  • ○

    Yes
  • ○

    No
Question 9

Which of the following commands will create a swarm service which only listens on port 53 using the UDP protocol?

Select an option, then click Submit answer.

  • ○

    docker service create --name dns-cache -p 53:53/udp dns-cache
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    docker service create --name dns-cache -p 53:53 --service udp dns-cache
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    docker service create --name dns-cache -p 53:53 ..constraint networking.protocol.udp=true dns-cache
  • ○

    docker service create --name dns-cache -p 53:53 --udp dns-cache