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Red Hat Certified Specialist In OpenShift Data Foundation Free Sample Questions

12 free sample questions120 in the full practice test

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EX370 Sample Questions

  1. Question 1

    Beginner

    Block and File Storage · Storage Classes

    A cloud architect is designing a storage solution for a high-performance database workload on OpenShift using OpenShift Data Foundation. The requirement specifies that the storage must support ReadWriteOnce (RWO) access mode and provide the lowest possible latency for transaction logs. Which storage class should be selected for the PersistentVolumeClaim (PVC)?

    Answer and explanation

    Correct answer: D

    The ocs-storagecluster-ceph-rbd storage class utilizes the Ceph RADOS Block Device (RBD) protocol. RBD operates at the block level, providing lower latency and higher performance compared to file-based protocols, making it the optimal choice for database transaction logs requiring RWO access.

  2. Question 2

    Intermediate

    Deployment · Local Storage Operator

    An administrator needs to deploy OpenShift Data Foundation on an existing OpenShift cluster running on bare metal nodes. The nodes have raw, unformatted disks available for storage. Which custom resource must be configured to discover and provision these disks for use by ODF?

    Answer and explanation

    Correct answer: D

    The LocalVolumeSet custom resource is used by the Local Storage Operator to automatically discover available disks matching specific criteria (like device type or size) and provision PersistentVolumes for them, which ODF then consumes.

  3. Question 3

    Beginner

    Block and File Storage · Access Modes

    A developer requests a storage solution for a web application that requires shared access to media files across multiple pods running on different nodes. The application expects a standard POSIX filesystem interface. Which configuration meets these requirements?

    Answer and explanation

    Correct answer: D

    CephFS supports ReadWriteMany (RWX), allowing multiple pods on different nodes to mount the same volume simultaneously with a POSIX-compliant filesystem interface, ideal for shared media files.

  4. Question 4

    Intermediate

    Object Storage · Multicloud Gateway

    You are configuring the Multicloud Object Gateway (MCG) to store data in a hybrid environment. You need to ensure that specific data buckets are stored on an on-premises Ceph cluster, while others are stored in AWS S3. What MCG resource should you configure to define these specific storage targets?

    Answer and explanation

    Correct answer: A

    A BackingStore in NooBaa (MCG) represents a connection to a specific storage target, such as an AWS S3 bucket or a local Ceph RGW. You create distinct BackingStores for each target and then map buckets to them.

  5. Question 5

    Advanced

    Troubleshooting · Component Failure

    During a routine check, you notice that an OSD (Object Storage Daemon) pod is in a CrashLoopBackOff state. After inspecting the logs, you suspect a physical drive failure. Which OpenShift CLI command sequence is appropriate to identify the failed device associated with the OSD?

    Answer and explanation

    Correct answer: A

    To identify the failed OSD, you first locate the OSD pods. Then, accessing the Ceph tools pod (or executing via the operator) allows you to run ceph osd tree to see which OSD ID is down. You can then map this ID to the physical device UUID in the OSD pod description or PV.

  6. Question 6

    AdvancedMultiple answers

    Security · Encryption

    An organization requires strict encryption for all data at rest within their OpenShift Data Foundation cluster. They want to manage the encryption keys using an external HashiCorp Vault. Which two actions are required to configure this? (Select TWO)

    Answer and explanation

    Correct answers: B, D

    The StorageCluster Custom Resource must be configured with encryption: true and the kms section pointing to the connection details for the external Vault.

    ODF requires a Kubernetes Secret with specific keys (like address, token, etc.) to authenticate and communicate with the external KMS.

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