A Kubernetes cluster is running a stateful application that experiences predictable traffic spikes during business hours. The application is deployed as a Deployment with 3 replicas. The team wants to automatically increase the number of replicas during high CPU usage and decrease when usage drops, without manual intervention. Which Kubernetes feature should they use?

Configure a VerticalPodAutoscaler (VPA) that adjusts CPU and memory requests

Configure a ClusterAutoscaler to add more nodes to the cluster

Configure a HorizontalPodAutoscaler (HPA) that targets CPU utilization

Manually run `kubectl scale deployment myapp --replicas=5` during peak hours

In a Kubernetes Deployment YAML manifest, which field specifies the container image to use?

spec.template.spec.containers[].image

What is the primary purpose of a Docker image?

To manage network traffic between containers.

To store logs generated by running containers.

To provide a persistent storage volume for container data.

To define the application code, runtime, libraries, and configuration in a portable format.

A CI/CD pipeline needs to pull a private Docker image from a registry during the deployment stage. The pipeline runs on a Kubernetes cluster, and the deployment manifest references the image. What must be configured so that Kubernetes can pull the image from the private registry?

Store the registry credentials in a ConfigMap and reference it in the Deployment

Set the registry credentials as environment variables in the Deployment

Create a Secret of type `docker-registry` and reference it in the Deployment's `imagePullSecrets`

Use `kubectl create secret tls` to create a secret for the registry

CiscoCertified DevNet Professional

Domain 4Objective 2

Integrate an Application into a Prebuilt CD Environment Leveraging Docker and Kubernetes 350-901 Practice Questions (Page 6)

Part of the 4.0 Application Deployment and Security domain, which accounts for 20% of the 350-901 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–1 from this objective — we provide 38 practice questions to prepare you well beyond it. (estimate)

38questions here

8free pages

14concepts

20%of the exam

Questions 26–30

26application · medium
A Kubernetes cluster is running a stateful application that experiences predictable traffic spikes during business hours. The application is deployed as a Deployment with 3 replicas. The team wants to automatically increase the number of replicas during high CPU usage and decrease when usage drops, without manual intervention. Which Kubernetes feature should they use?
Select an answer first
27foundation · easy
In a Kubernetes Deployment YAML manifest, which field specifies the container image to use?
Select an answer first
28foundation · easy
What is the primary purpose of a Docker image?
Select an answer first
29application · medium
A CI/CD pipeline needs to pull a private Docker image from a registry during the deployment stage. The pipeline runs on a Kubernetes cluster, and the deployment manifest references the image. What must be configured so that Kubernetes can pull the image from the private registry?
Select an answer first
30foundation · easy
What is the smallest deployable unit in Kubernetes?
Select an answer first

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Integrate an Application into a Prebuilt CD Environment Leveraging Docker and Kubernetes 350-901 Practice Questions (Page 6)

Questions 26–30

In a Kubernetes Deployment YAML manifest, which field specifies the container image to use?

What is the primary purpose of a Docker image?

A CI/CD pipeline needs to pull a private Docker image from a registry during the deployment stage. The pipeline runs on a Kubernetes cluster, and the deployment manifest references the image. What must be configured so that Kubernetes can pull the image from the private registry?

What is the smallest deployable unit in Kubernetes?

Keep studying — 4.0 Application Deployment and Security