Core Components Flashcards

What part of OpenStack's computing, storage, and networking services acts as the user's dashboard?

Answer: Horizon

Explanation: Horizon is an OpenStack component that provides a web-based graphical interface, more commonly known as a dashboard. An enterprise can customize the Horizon dashboard to meet its unique needs.

Which three parts of OpenStack are required for Nova to work?

Answer: Keystone, Glance and Neutron

Explanation: Nova gives enterprises a way to provision resources, such as VMs, bare-metal servers and containers. To perform its basic functions, Nova requires the Keystone, Glance and Neutron components.

What is the fundamental job of the neutron?

Answer: Networking

Explanation: Neutron is a software-defined networking component that delivers networking-as-a-service capabilities to virtual environments.

What constitutes the foundational element of OpenStack orchestration?

Answer: Heat

Explanation: Heat acts as an orchestration engine that deploys cloud resources and applications through templates.

Cinder handles block storage for OpenStack, while Swift handles object storage.

Answer: TRUE

Explanation: Swift and Cinder are the main OpenStack components for storage. Swift is a scalable, distributed object storage system primarily meant for unstructured data. Cinder provides persistent block storage to OpenStack environments.

What part of OpenStack offers identity services?

Answer: Keystone

Explanation: Keystone provides authentication and authorization through an API for OpenStack. It supports Lightweight Directory Access Protocol, OAuth, OpenID Connect, Security Assertion Markup Language and SQL.

Which services does Glance offer?

Answer: Image management

Explanation: OpenStack Glance is an image service that registers, discovers and retrieves VM images.