OpenStack OpenStack Networking (Neutron)

Question 1

Which OpenStack service provides Networking-as-a-Service (NaaS) and is the primary networking component?

Accepted Answer

Neutron

Answer

Neutron is the OpenStack Networking service that provides Networking-as-a-Service capabilities.

Question 2

What is a Neutron 'provider network' in OpenStack?

Accepted Answer

A network connected directly to the physical network infrastructure

Answer

A provider network in Neutron is directly mapped to an existing physical network in the data center.

Question 3

Which Neutron component acts as the L3 routing agent responsible for routing traffic between subnets?

Accepted Answer

neutron-l3-agent

Answer

The neutron-l3-agent handles Layer 3 routing, including routing between subnets and managing floating IPs.

Question 4

What is a 'security group' in Neutron?

Accepted Answer

A set of firewall rules applied to VM network interfaces

Answer

Security groups are sets of IP filter rules (firewall rules) that are applied to a VM's network interface.

Question 5

Which network type in Neutron uses 802.1Q VLAN tagging to isolate tenant networks?

Accepted Answer

vlan

Answer

The 'vlan' network type uses 802.1Q VLAN tags to provide network isolation between tenants.

OpenStack Practice Test