Online Access Free JN0-410 Practice Test

You have an OpenStack environment and a compute instance has crashed. You attempt to restart theAWM instance and you receive the message shown below.
Invalid: Instance has already been created
InstanceNotFound: Instance AWM could not be found.
What does this message indicate?

• A.The instance is headless.
• B.Keystone has a corrupted lock file forthe instance.
• C.The instance is stuck in an inactive state.
• D.The database has an invalid identifier for the instance.

Which statement about storage support in Contrail is true?

• A.Placement groups require manual configuration basedon the number of disk drives in a cluster.
• B.A Ceph monitor process is configured for a cluster.
• C.A replication factor of 2 is configured, consisting of one original instance plus one replica copy.
• D.Disks are configured for RAID to achieve optimal performance and create proper failure boundaries.

Using the console, you cannot connect into a running instance within the Horizon GUI. You have confirmed that the corresponding compute node hosting the instance is running, and that the instance has an operational status.
What is preventing you from connecting to the running instance in this scenario?

• A.the testbed.py script
• B.the supervisor-vrouter service
• C.the Heat Template
• D.the nova-consoleauth service

Which role does Contrail serve in SDN?

• A.gateway
• B.orchestrator
• C.controller
• D.fabric

What are two modes of service chaining that Contrail implements? (Choose two.)

• A.in-network-nat
• B.analytic
• C.interface analyzer
• D.transparent