DCA Swarm Practice Questions

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

• AA. docker service create --name dns-cache -p 53:53/udp dns-cache
• BB. docker service create --name dns-cache -p 53:53 --service udp dns-cache
• CC. docker service create --name dns-cache -p 53:53 ..constraint networking.protocol.udp=true dns-cache
• DD. docker service create --name dns-cache -p 53:53 --udp dns-cache

What is the docker command to setup a swarm?

• AA. docker swarm init
• BB. docker swarm create
• CC. docker init swarm
• DD. docker create swarm

Which of these swarm manager configurations will cause the cluster to be in a lost quorum state?

• AA. 4 managers of which 2 are healthy
• BB. 1 manager of which 1 is healthy
• CC. 3 managers of which 2 are healthy
• DD. 5 managers of which 3 are healthy