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Free EX210 sample questions

Real questions from the Red Hat Certified Specialist in Cloud Infrastructure exam practice bank, with the correct answer and an explanation for each one. No junk, no filler.

Try them in the simulator Same questions, with study, timed and flashcard modes.

Showing 6 of 12 free sample questions.

Question 1Choose one

A cloud administrator is managing a Red Hat OpenStack Platform environment using the OVN (Open Virtual Network) mechanism driver. Tenants are reporting intermittent connectivity issues between instances on different compute nodes. The administrator decides to use `ovn-trace` to debug the logical packet flow. Which piece of information is strictly required to initiate a trace for a packet originating from a specific VM instance?

Question 2Choose one

You are configuring a new flavor in Nova to support high-performance database workloads that require dedicated physical CPU cores to avoid context switching overhead. The compute nodes are configured with CPU pinning enabled. Which specific key-value pair must be added to the flavor's extra specs to enforce this requirement?

Question 3Choose one

During a scheduled maintenance window, you need to stop the OpenStack control plane services running on a specific controller node (`controller-0`) to replace a faulty memory module. The environment uses Red Hat OpenStack Platform 16.1 with containerized services managed by Pacemaker. Which command sequence correctly puts the node into standby mode to safely migrate resources away before shutdown?

Question 4Choose one

You are managing a Red Hat Ceph Storage cluster integrated with OpenStack. You observe that one OSD (`osd.5`) has failed physically and cannot be recovered. You have replaced the disk and need to re-add it to the cluster with the same ID to maintain the CRUSH map structure. Which procedure correctly handles the removal of the old OSD from the CRUSH map and authentication keys before adding the new one?

Question 5Choose one

A cloud architect is designing a Keystone integration with an external corporate LDAP directory (Red Hat IdM). The requirement is that users from the 'Engineering' group in LDAP should be mapped to the 'Member' role in the 'Engineering' project in OpenStack, while users from 'Finance' should only access the 'Finance' project. Which Keystone configuration concept is best suited to implement this granular, domain-specific access control?

Question 6Choose one

You are troubleshooting a failed Heat stack deployment. The stack status is `CREATE_FAILED`. You suspect a resource dependency issue where the application server is attempting to connect to the database before the database is fully initialized. Which intrinsic function should be verified or added to the application server resource definition to explicitly enforce this ordering?

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