Practice Test Geeks(COA) Certified OpenStack Administrator Exam Practice Test
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Identity, Image, and Compute Management 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 Identity, Image, and Compute Management flashcards as text

  1. An administrator wants to update the quota for a specific project to allow 50 instances. Which command accomplishes this?

    Answer: openstack quota set --instances 50

    'openstack quota set --instances' updates the Nova instance count quota for the specified project using the Unified CLI.

  2. Which Keystone endpoint type should be configured for internal service-to-service communication within the OpenStack control plane?

    Answer: internal

    The 'internal' endpoint type is used for service-to-service API calls within the control network, separate from the public-facing endpoint.

  3. When importing a large Glance image using the interoperable image import workflow, which task stage accepts the image data URI and downloads it into Glance staging?

    Answer: web-download import method

    The 'web-download' import method instructs Glance to download the image directly from a URI, useful for large images to avoid client-side transfers.

  4. A Nova instance is stuck in 'ERROR' state after a failed build. What is the safest first step an administrator should take to investigate?

    Answer: openstack server show and check the 'fault' field

    'openstack server show' displays the 'fault' field containing the error message and code that caused the build failure.

  5. Which property must be set on a Glance image to enable it to be used for Cinder volume-backed instances, ensuring the image can be stored as a bootable volume?

    Answer: hw_disk_bus

    The 'hw_disk_bus' property specifies the disk controller (e.g., virtio, scsi) needed for Cinder to correctly attach the volume as a bootable block device.

  6. An operator notices that 'nova-compute' service shows 'down' in 'openstack compute service list'. What is the most likely first place to check for the root cause?

    Answer: The nova-compute log on the affected host (/var/log/nova/nova-compute.log)

    The nova-compute log on the affected host contains detailed error messages explaining why the service stopped reporting to the controller.

  7. Which command lists all available Keystone service endpoints registered in the service catalog, showing their URLs and endpoint types?

    Answer: openstack endpoint list

    'openstack endpoint list' displays all registered endpoints including their service type, region, interface (public/internal/admin), and URL.