COA Implementation & Configuration 3

Question 1

Which configuration file controls the Nova compute service on a compute node?

Accepted Answer

/etc/nova/nova.conf

Answer

nova.conf is the primary configuration file for all Nova services including nova-compute on each compute node.

Question 2

When configuring Keystone with Fernet tokens, which command initializes the Fernet key repository?

Accepted Answer

keystone-manage fernet_setup --keystone-user keystone --keystone-group keystone

Answer

keystone-manage fernet_setup initializes the Fernet key repository and sets the correct ownership for the key directory.

Question 3

Which Glance image property signals Nova to use a config drive when booting an instance?

Accepted Answer

img_config_drive=mandatory

Answer

Setting img_config_drive=mandatory in the Glance image metadata forces Nova to attach a config drive for every instance created from that image.

Question 4

In an OpenStack deployment, what is the function of the 'placement' service?

Accepted Answer

Tracks resource provider inventories and allocations to support Nova scheduling decisions

Answer

The Placement API (originally part of Nova) tracks resource inventories like vCPU, RAM, and disk across compute nodes to help the scheduler make placement decisions.

Question 5

Which OpenStack CLI command lists all available flavors?

Accepted Answer

openstack flavor list

Answer

The 'openstack flavor list' command displays all available instance flavors defined in Nova.

(COA) Certified OpenStack Administrator Exam Practice Test

(COA) Certified OpenStack Administrator Exam Practice Test

COA Implementation & Configuration 3