COA Architecture and Services

Question 1

Which OpenStack component is responsible for managing compute resources?

Accepted Answer

Nova

Answer

Nova is the primary compute service in OpenStack, responsible for managing and provisioning virtual machines (instances). It handles tasks such as scheduling, launching, and terminating instances, making it the core component for compute resource management within the cloud environment.

Question 2

What is the purpose of Keystone in OpenStack architecture?

Accepted Answer

Identity and authentication

Answer

Keystone serves as the identity service for OpenStack, providing authentication and authorization for all OpenStack services. It manages users, tenants (projects), and roles, ensuring that only authorized users can access specific resources and services within the cloud.

Question 3

Which service handles image management in OpenStack?

Accepted Answer

Glance

Answer

Glance is the image service in OpenStack, responsible for storing, managing, and retrieving virtual machine images. These images serve as templates for creating new instances, and Glance allows users to upload, register, and discover available images for their cloud deployments.

Question 4

What role does Neutron play in OpenStack?

Accepted Answer

Provides networking services

Answer

Neutron is the OpenStack networking service, offering network connectivity as a service for virtual machines. It allows users to define network topologies, create virtual networks, subnets, routers, and manage IP addresses, enabling communication between instances and with external networks.

Question 5

Which component provides a web-based user interface for OpenStack?

Accepted Answer

Horizon

Answer

Horizon is the official web-based dashboard for OpenStack, providing a graphical user interface (GUI) for users and administrators. It allows for easy management of OpenStack resources such as instances, images, networks, and volumes through a web browser, simplifying cloud operations.

(COA) Certified OpenStack Administrator Exam Practice Test

(COA) Certified OpenStack Administrator Exam Practice Test

COA Architecture and Services