COA COA OpenStack CLI & Dashboard Operations 2

Question 1

Which CLI command displays the current resource quota limits for a specific OpenStack project?

Accepted Answer

openstack quota show <project>

Answer

`openstack quota show` displays configured resource quotas for a project, including instance count, vCPUs, RAM, and volumes.

Question 2

How does an admin list running instances across ALL projects using the OpenStack CLI?

Accepted Answer

openstack server list --all-projects

Answer

The `--all-projects` flag allows admin users to list instances from all projects rather than only the currently scoped project.

Question 3

Which CLI command attaches an existing security group to a running OpenStack instance?

Accepted Answer

openstack server add security group

Answer

`openstack server add security group` attaches a security group to an instance, immediately applying its rules to the instance's ports.

Question 4

What does the `openstack token issue` command generate?

Accepted Answer

A temporary Keystone authentication token for the current session

Answer

`openstack token issue` generates a time-limited Keystone token that authenticates API requests without repeatedly submitting user credentials.

Question 5

What is the correct CLI command to resize an OpenStack instance to a different flavor?

Accepted Answer

openstack server resize --flavor

Answer

`openstack server resize` initiates a flavor change and places the instance into VERIFY_RESIZE state, requiring a confirm or revert to complete.

(COA) Certified OpenStack Administrator Exam Practice Test