OpenStack Core Components 4

Question 1

Which OpenStack component provides container orchestration using Kubernetes clusters?

Accepted Answer

Magnum

Answer

Magnum is the OpenStack Container Infrastructure Management service that provisions and manages Kubernetes clusters as a first-class resource.

Question 2

What is the default token format used by Keystone in modern OpenStack deployments?

Accepted Answer

Fernet

Answer

Fernet tokens are the default in modern Keystone because they are lightweight, stateless, and don't require token persistence in the database.

Question 3

In OpenStack Neutron, what is the purpose of the ML2 (Modular Layer 2) plugin?

Accepted Answer

Providing a framework to support multiple network technologies via type and mechanism drivers

Answer

The ML2 plugin uses a driver framework that separates network type drivers (VLAN, VXLAN) from mechanism drivers (OVS, LinuxBridge), enabling flexible backend support.

Question 4

Which OpenStack service is used for DNS-as-a-Service?

Accepted Answer

Designate

Answer

Designate is the OpenStack DNS service that manages DNS zones and records, integrating with backends like BIND and PowerDNS.

Question 5

What is a Nova 'flavor' in OpenStack?

Accepted Answer

A hardware profile defining vCPUs, RAM, and disk for an instance

Answer

Flavors define the compute resource profile (vCPUs, memory, disk) available for instantiating VMs, similar to AWS instance types.

OpenStack Practice Test

OpenStack Practice Test

OpenStack Core Components 4