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OpenStack Networking (Neutron) Flashcards

6 cards from real OpenStack practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 OpenStack Networking (Neutron) flashcards as text

  1. Which Neutron plug-in mechanism uses software-defined networking (SDN) with virtual switches?

    Answer: Open vSwitch (OVS) ML2 driver

    The Open vSwitch (OVS) ML2 driver is a widely used Neutron mechanism driver that leverages OVS for virtual switching.

  2. What does ML2 stand for in the context of Neutron's plugin architecture?

    Answer: Modular Layer 2

    ML2 stands for Modular Layer 2, a framework that allows OpenStack Neutron to use multiple Layer 2 technologies simultaneously.

  3. In Neutron, what is a 'subnet' defined as?

    Answer: A block of IP addresses and associated configuration assigned to a network

    A subnet in Neutron is a block of IP addresses (CIDR) with configuration like gateway and DNS assigned to a network.

  4. Which Neutron agent handles DHCP requests for VMs on tenant networks?

    Answer: neutron-dhcp-agent

    The neutron-dhcp-agent provides DHCP services for tenant networks by managing dnsmasq processes.

  5. What is VXLAN in the context of OpenStack Neutron overlay networks?

    Answer: A tunneling protocol that encapsulates L2 frames in UDP to extend networks over L3

    VXLAN (Virtual Extensible LAN) encapsulates Layer 2 Ethernet frames within UDP packets, enabling large-scale overlay networks.

  6. What is the role of the Neutron metadata agent?

    Answer: It relays instance metadata requests from VMs to the Nova metadata API

    The neutron-metadata-agent proxies requests from VMs to the Nova metadata API, enabling instances to retrieve their configuration data.

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Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. openstack.org — Test delivery, score release, test dates, score validity, exam information · verified Oct 2026
  2. training.mirantis.com — Eligibility · verified Oct 2026
  3. object-storage-ca-ymq-1.vexxhost.net — Fees, renewal, retake fee, retake policy, time limit · verified Oct 2026