OpenStack Vskills 2

Question 1

Which OpenStack service is responsible for providing block storage to virtual machines?

Accepted Answer

Cinder

Answer

Cinder provides persistent block storage volumes that can be attached to Nova compute instances.

Question 2

In OpenStack Neutron, what is a 'floating IP' used for?

Accepted Answer

Providing external/public connectivity to an instance

Answer

Floating IPs are public addresses that can be dynamically associated with instances to allow external network access.

Question 3

Which command lists all available Nova flavors in OpenStack?

Accepted Answer

nova flavor-list

Answer

The 'nova flavor-list' command (or 'openstack flavor list' in the unified CLI) displays all available hardware profiles.

Question 4

What is the role of Keystone's 'endpoint' in OpenStack?

Accepted Answer

A URL pointing to a specific service API

Answer

Keystone endpoints are URLs registered in the service catalog that clients use to access specific OpenStack services.

Question 5

Which OpenStack component manages the lifecycle of VM images before they are launched?

Accepted Answer

Glance

Answer

Glance is the OpenStack image registry service that stores, retrieves, and manages virtual machine disk images.

OpenStack Practice Test