OpenStack Study Guide 2026
Everything you need to pass the OpenStack exam in one place: the exam format, every topic to study, real practice questions with explanations, flashcards, and full-length practice tests. Free, no sign-up needed.
📋 OpenStack Exam Format at a Glance
📚 OpenStack Topics to Study (33)
✍️ Sample OpenStack Questions & Answers
1. In OpenStack, what does 'live migration' require that 'cold migration' does not?
Live migration moves a running instance and requires either shared storage or block migration to transfer the disk state without downtime.
2. Which OpenStack service is used for DNS-as-a-Service?
Designate is the OpenStack DNS service that manages DNS zones and records, integrating with backends like BIND and PowerDNS.
3. What is the 'visibility' property of a Glance image?
Glance image visibility controls access: 'public' images are available to all tenants, 'private' only to the owner.
4. What does ML2 stand for in the context of Neutron's plugin architecture?
ML2 stands for Modular Layer 2, a framework that allows OpenStack Neutron to use multiple Layer 2 technologies simultaneously.
5. What is a Nova 'availability zone' used for?
Nova availability zones allow users to specify which logical partition of compute resources to deploy instances into.
6. What is QoS (Quality of Service) used for in Neutron?
Neutron QoS policies allow administrators to set bandwidth limits, minimum bandwidth guarantees, and DSCP marks on network ports.