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Cisco 300-910 Dumps

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Total 114 questions
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Implementing DevOps Solutions and Practices using Cisco Platforms (DEVOPS) Questions and Answers

Question 1

A DevOps engineer is designing a precheck validation of the network state in a CI/CD pipeline and must implement this workflow:

• Take a source Docker image named alpine

• Define two stages named build and push

• Check network connectivity before the stages run

• Fetch the latest Docker image

• Create a new Docker image and push it to the registry

• Tag the new Docker image as the latest version

Drag and drop the code snippets from the bottom onto the boxes in the GitLab CI configuration to achieve the requirements for the design. Not all options are used.

as

Options:

Question 2

An application has been designed based on microservices. The application is deployed on Kubernetes using multiple pods that share the same IP address. Each pod is responsible for a service in the application.

Which command validates the success of the application deployment?

Options:

A.

kubectl get pods -o wide -w

B.

kubectl rollout status deployment

C.

kubectl describe pods/

D.

kubectl rollout history deployment

Question 3

Refer to the exhibit.

as

Which CI solution uses this file?

Options:

A.

Drone

B.

GitLab CI

C.

Travis CI

D.

Jenkins

Question 4

Which Dockerfile yields the most predictable builds?

A)

as

B)

as

C)

as

D)

as

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

Question 5

Which type of testing should be integrated into a CI/CD pipeline to ensure the correct behavior of all of the modules in the source code that were developed using TDD?

Options:

A.

soak testing

B.

unit testing

C.

load testing

D.

volume testing

Question 6

A company has a CI/CD pipeline implemented to automate application deployment. An urgent change is required in the production environment. A developer produces and tests the required change in the company's environment, but the pipeline fails when pushed.

Which action conforms to the rules of a CI/CD pipeline and enables the pipeline to pass?

Options:

A.

Remove the failing test.

B.

Manually deploy the change into the production environment

C.

Use a backup pipeline

D.

Replicate the production environment in the pipeline before applying

Question 7

What is a benefit of monitoring the CI/CD pipeline?

Options:

A.

troubleshoots distributed systems performance

B.

proactively deploys new servers if needed

C.

analyzes network outages that affect the network and server infrastructure

D.

provides insight into how efficiently the development team is operating

Question 8

Refer to the exhibit.

as

An organization has issues with code-based failures after implementing a CI/CD pipeline to automate the builds and deployment phases of an application.

Which action must be added to the pipeline, after the application is deployed in the staging environment to minimize failures and to ensure a successful continuous deployment?

Options:

A.

Restructuring and monitoring tests must be run after it is promoted to production

B.

Restructuring and monitoring tests must be run before it is promoted to production

C.

Functional and nonfunctional tests must be run after it is promoted to production

D.

Functional and nonfunctional tests must be run before it is promoted to production

Question 9

What are two testing scenarios of the chaos engineering principle? (Choose two.)

Options:

A.

maxing out CPU cores on an Elasticsearch cluster

B.

removing all users from a version control system

C.

executing routine in driver code to emulate I/O errors

D.

blocking developers’ building access

E.

unplugging a core switch device

Question 10

Which two practices help make the security of an application a more integral part of the software development lifecycle? (Choose two.)

Options:

A.

Add a step to the CI/CD pipeline that runs a dynamic code analysis tool during the pipeline execution.

B.

Add a step to the CI/CD pipeline that runs a static code analysis tool during the pipeline execution.

C.

Use only software modules that are written by the internal team.

D.

Add a step to the CI/CD pipeline to modify the release plan so that updated versions of the software are made available more often.

E.

Ensure that the code repository server has enabled drive encryption and stores the keys on a Trusted Platform Module or Hardware Security Module.

Question 11

AppDynamics is being used to monitor your distributed Python application. Each individual container of the application is instrumented with an AppD agent. Which two configuration variables uniquely determine the module being monitored? (Choose two.)

Options:

A.

node

B.

app

C.

agent

D.

tier

E.

event

Question 12

What is as responsibility for teams running private cloud servers that is less of a concern when running in the public cloud?

Options:

A.

cost

B.

metrics and monitoring

C.

hardware maintenance

D.

credentials management

Question 13

A developer wants to deploy a highly available web server cluster and decides to put a load balancer in front of multiple clustered nodes that run the same web service. The goal is for the load balancer to take in users and distribute the load across the whole cluster.

What kind of high-availability configuration is the developer running?

Options:

A.

active

B.

passive

C.

active-passive

D.

active-active

Question 14

Refer to the exhibit.

as

What are the properties of the load balancer in a Kubernetes environment?

Options:

A.

Has exposed ports 80 and 8080 to a private IP address and directs outgoing connections to the port named http-port1

B.

Has exposed ports 80 and 8080 to a public IP address and directs incoming connections to the port named nginx-port

C.

Forwards incoming traffic from the port named nginx-port to ports 80 and 8080 of nginxapp

D.

Forwards any outgoing traffic from the port named nginx-port to exposed ports http-port1 and http-port2 of nginxapp

Question 15

A new version of an application is being released by creating a separate instance of the application that is running the new code. Only a small portion of the user base will be directed to the new instance until that version has been proven stable. Which deployment strategy is this example of?

Options:

A.

recreate

B.

blue/green

C.

rolling

D.

canary

Question 16

Refer to the exhibit.

as

Which action allows the development team to reach the deployed application?

Options:

A.

Create an init container to initialize routes for the containers in the pod

B.

Create a service to expose the logic running in the pod

C.

Delete the deployment and redeploy by using a ReplicaSet.

D.

Delete the deployment and redeploy by using the latest tag for the container image

Question 17

Refer to the exhibit.

as

What is the reason for this error message?

Options:

A.

The required dependencies for the urllib3 module are not installed.

B.

The requests module is not installed.

C.

The required dependencies for the requests module are not installed.

D.

The site-packages directory has been corrupted.

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