Free Dell Cloud Infrastructure Design Practice Questions

Sample Practice Questions

Try these 10 sample questions from the Dell Cloud Infrastructure Design practice bank. Each includes the answer and explanation. Continue with the interactive practice above to review the full question set.

1. 1Which cloud characteristic allows a consumer to provision server time automatically without contacting provider staff?

   1. A.On-demand self-serviceCorrect answer: A
   2. B.Broad network access
   3. C.Resource pooling
   4. D.Measured service

   Explanation: "On-demand self-service. A consumer can unilaterally provision computing capabilities, such as server time and network storage, as needed automatically without requiring human interaction with each service provider." This characteristic permits automatic provisioning without contacting a provider.

   Reference: The NIST Definition of Cloud Computing — Section 2, Essential Characteristics

2. 2In AWS Transform OS-collected discovery metrics, which mapping of metrics to collection modules is correct?

   1. A.Server performance collects CPU; storage performance collects disk IOPS.Correct answer: A
   2. B.Storage performance collects CPU; server performance collects disk IOPS.
   3. C.Server performance collects both CPU and disk IOPS.
   4. D.Storage performance collects both CPU and disk IOPS.

   Explanation: "CPU, memory, and network samples come from the server performance module, and disk IOPS and throughput samples come from the storage performance module." The storage performance module collects disk IOPS; server performance collects CPU, memory, and network.

   Reference: Data collection - AWS Transform — How average, p95, and peak statistics are calculated

3. 3For OpenShift Virtualization 4.16 live migration, which shared storage access mode is required by the documented cluster requirements?

   1. A.ReadOnlyMany
   2. B.ReadWriteOncePod
   3. C.ReadWriteManyCorrect answer: C
   4. D.ReadWriteOnce

   Explanation: "The cluster must have shared storage with ReadWriteMany (RWX) access mode." The specified shared access mode is RWX.

   Reference: OpenShift Container Platform 4.16 Virtualization — 10.1.1. Live migration requirements

4. 4How does Dell describe the storage in a traditional converged infrastructure platform?

   1. A.Software-defined storage distributed across the server cluster
   2. B.Traditional storage arrays pre-integrated with servers and networkingCorrect answer: B
   3. C.Independent storage purchased and integrated separately
   4. D.Server-local storage managed only by each application

   Explanation: "Converged infrastructure platforms are fully pre-integrated servers, traditional storage arrays, and networking hardware stacks." The separate traditional storage array is characteristic of the described converged platform.

   Reference: Dell VxRail Tech Book — Hyperconverged infrastructure: Building block for modern infrastructure, Introduction

5. 5In the NIST reference architecture, which cloud management function automatically deploys systems based on requested capabilities?

   1. A.Contract management
   2. B.Pricing and rating
   3. C.Rapid provisioningCorrect answer: C
   4. D.Service metering

   Explanation: "Rapid provisioning: Automatically deploying cloud systems based on the requested service/resources/capabilities." Provisioning deploys the requested systems.

   Reference: NIST Cloud Computing Reference Architecture — Section 3.3.2, Provisioning and Configuration

6. 6What distinguishes a hybrid cloud deployment in the NIST definition?

   1. A.Distinct cloud infrastructures bound by technology enabling portabilityCorrect answer: A
   2. B.A single shared pool dedicated to one organization only
   3. C.Multiple servers within one isolated private cloud
   4. D.A public cloud used without connection to any other cloud

   Explanation: "Hybrid cloud. The cloud infrastructure is a composition of two or more distinct cloud infrastructures (private, community, or public) that remain unique entities, but are bound together by standardized or proprietary technology that enables data and application portability" The constituent clouds remain distinct while enabling portability.

   Reference: The NIST Definition of Cloud Computing — Section 2, Deployment Models

7. 7Which Kubernetes workload resource is a good fit for a continuously running stateless application with interchangeable Pods?

   1. A.DaemonSet
   2. B.Job
   3. C.DeploymentCorrect answer: C
   4. D.StatefulSet

   Explanation: "Deployment is a good fit for managing a stateless application workload on your cluster, where any Pod in the Deployment is interchangeable and can be replaced if needed." A Deployment manages replaceable stateless replicas.

   Reference: Workloads — Built-in workload resources

8. 8Which cloud characteristic describes scaling capacity outward and inward with demand?

   1. A.Broad network access
   2. B.Resource pooling
   3. C.Rapid elasticityCorrect answer: C
   4. D.On-demand self-service

   Explanation: "Rapid elasticity. Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand." This characteristic scales capacity with demand.

   Reference: The NIST Definition of Cloud Computing — Section 2, Essential Characteristics

9. 9For OS-collected metrics in AWS Transform discovery, what does the exported p95 represent?

   1. A.The 95th percentile of samplesCorrect answer: A
   2. B.The largest individual sample
   3. C.The sum of volume peak samples
   4. D.The mean of all samples

   Explanation: "p95 – the 95th percentile, computed with the inclusive method (equivalent to the Excel PERCENTILE.INC function). It never exceeds the maximum sample observed." The mean and peak are different statistics.

   Reference: Data collection - AWS Transform — How average, p95, and peak statistics are calculated

10. 10A VM uses a host model CPU in OpenShift Virtualization 4.16. Which CPU compatibility rule applies to destination nodes?

    1. A.Only the source node needs to support the VM CPU model.
    2. B.Destination nodes must use a CPU incompatible with the VM.
    3. C.Destination nodes may ignore the VM CPU model.
    4. D.Destination nodes must support the VM's host model CPU.Correct answer: D

    Explanation: "If a VM uses a host model CPU, the nodes must support the CPU." Compatibility of the CPU model is a specific migration requirement.

    Reference: OpenShift Container Platform 4.16 Virtualization — 10.1.1. Live migration requirements