COA Networking and Storage Configuration 3

Question 1

Which command displays all Neutron agents running in the deployment and their alive status?

Accepted Answer

openstack network agent list

Answer

openstack network agent list is the unified CLI command that shows all Neutron agents with their host, type, and alive flag.

Question 2

In Swift, what is the maximum recommended size of a single object before it should be split into a large object?

Accepted Answer

5 GB

Answer

Swift recommends splitting objects larger than 5 GB into segments using Static or Dynamic Large Object support.

Question 3

Which Cinder option configures the minimum free space percentage that must remain on a storage backend before it stops accepting new volumes?

Accepted Answer

reserved_percentage

Answer

reserved_percentage tells Cinder to keep that fraction of backend capacity free and report it as unavailable for scheduling.

Question 4

What Neutron feature allows a single physical network interface to carry multiple tenant networks using 802.1Q tags?

Accepted Answer

VLAN provider network

Answer

VLAN provider networks use 802.1Q tagging to isolate multiple tenant networks over one physical interface.

Question 5

Which command attaches a Cinder volume to a running Nova instance using the OpenStack CLI?

Accepted Answer

openstack server add volume

Answer

openstack server add volume triggers the Nova compute API to attach the Cinder volume to the specified instance.

(COA) Certified OpenStack Administrator Exam Practice Test