Implementation & Configuration Flashcards
7 cards from real COA practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Implementation & Configuration flashcards as text
Which command creates a new OpenStack project (tenant) using the CLI?
Answer: openstack project create
The 'openstack project create ' command is the unified CLI method to create a new project in Keystone.
In Neutron, what is the purpose of a 'router gateway' configuration?
Answer: It connects a Neutron router to an external provider network for outbound traffic
Setting a router gateway connects the Neutron router to an external network, enabling SNAT and floating IP association for outbound connectivity.
Which Nova scheduler filter ensures an instance is placed on a host with sufficient free RAM?
Answer: RamFilter
RamFilter rejects hosts that do not have enough available RAM to satisfy the instance flavor's memory requirement.
What does the 'openstack server resize' command do?
Answer: Changes an instance's flavor to alter its vCPU, RAM, and disk allocation
Server resize applies a new flavor to an existing instance, which must then be confirmed or reverted.
In Cinder, which command attaches a volume to a running Nova instance?
Answer: openstack server add volume
The 'openstack server add volume' command attaches a Cinder volume to a running instance using the unified CLI.
Which Heat resource type defines an auto-scaling group in an OpenStack Orchestration template?
Answer: OS::Heat::AutoScalingGroup
OS::Heat::AutoScalingGroup manages a collection of identical resources that can scale in or out based on defined policies.
What is the role of the 'ml2' plugin in OpenStack Networking?
Answer: Modular Layer 2 plugin that supports multiple network types and mechanism drivers simultaneously
The ML2 (Modular Layer 2) plugin provides a framework that allows Neutron to use multiple type drivers and mechanism drivers concurrently.