COA OpenStack CLI & Dashboard Operations Flashcards

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

Answer: openstack quota show

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

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

Answer: openstack server list --all-projects

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

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

Answer: openstack server add security group

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

What does the `openstack token issue` command generate?

Answer: A temporary Keystone authentication token for the current session

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

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

Answer: openstack server resize --flavor

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

Where in Horizon can you access both the console log output and the interactive VNC console for an instance?

Answer: Both the Actions menu and a dedicated Console tab

Horizon provides 'View Log' in the Actions menu for text console output and a 'Console' tab for the interactive VNC/SPICE terminal.