In OpenStack, which two statements about the NOVA component are true? (Choose two.)
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A. B. C. D. E.DE.
OpenStack is an open-source cloud computing platform that provides Infrastructure as a Service (IaaS) to deploy and manage large pools of compute, storage, and networking resources. The NOVA component, also known as Nova Compute, is responsible for managing and deploying virtual machines (VMs) in OpenStack.
Answer A: True. Nova is considered the cloud computing fabric controller, which manages the life cycle of virtual machines, networking, and storage resources. It interacts with other OpenStack services such as Keystone (authentication), Glance (image management), and Neutron (networking) to provide a complete cloud infrastructure.
Answer B: False. Authentication and authorization services are provided by Keystone, which is another component of OpenStack.
Answer C: False. The Ceilometer component in OpenStack is responsible for collecting usage statistics and billing purposes, not Nova.
Answer D: True. Nova launches and manages virtual machine instances in OpenStack. It interacts with other components such as Glance for image management and Neutron for networking to provide a complete virtualization infrastructure.
Answer E: False. Persistent block storage to running instances of virtual machines is provided by the Cinder component in OpenStack, not Nova.
In conclusion, the correct answers are A and D. Nova is responsible for managing and deploying virtual machines in OpenStack and is considered the cloud computing fabric controller. It interacts with other components to provide a complete virtualization infrastructure.