OpenStack Core Components 2

Question 1

Which OpenStack service provides the Identity and Authentication functionality?

Accepted Answer

Keystone

Answer

Keystone is the OpenStack Identity service that handles authentication, authorization, and service catalog management.

Question 2

What is the primary function of OpenStack Nova?

Accepted Answer

Compute instance lifecycle management

Answer

Nova is OpenStack's compute service responsible for spawning, scheduling, and managing virtual machine instances.

Question 3

Which OpenStack component acts as the default message broker between services?

Accepted Answer

RabbitMQ

Answer

RabbitMQ is the default AMQP message broker used by OpenStack services to communicate asynchronously.

Question 4

In OpenStack Neutron, what is a 'provider network'?

Accepted Answer

A network mapped directly to a physical network in the data center

Answer

A provider network in Neutron is connected directly to existing physical infrastructure and is typically managed by the cloud operator.

Question 5

Which OpenStack service is responsible for storing and managing VM images?

Accepted Answer

Glance

Answer

Glance is the OpenStack Image service that provides discovery, registration, and retrieval of virtual machine images.

OpenStack Practice Test