300-910 試験問題と解答 - 模擬練習 - 練習問題・模擬試験

Question No : 1
A DevOps engineer has built a container to host a web-server and it must run as an executable.
Which command must be configured in a Dockerfile to accomplish this goal?

A.ENTRYPOINT <usr/sbin/apache2ctl>
B.ENTRYPOINT [“/usr/sbin/apache2ctl”, “-D”, “FOREGROUND”]
C.ENTRYPOINT [“BACKGROUND”, “-D”, “/usr/sbin/apache2ctl”]
D.ENTRYPOINT {usr/sbin/apache2ctl}

正解:

Question No : 2
Which two actions help limit the attack surface of your Docker container? (Choose two.)

A.Run only a single service in each container.
B.Run all services in a single image.
C.Use version tags for base images and dependencies.
D.Use Kali Linux as a base image.
E.Download images over HTTPS supporting sites.

正解:

Question No : 3
A DevOps engineer has built a new container and must open port 8080 for intercontainer communication.
Which command must be added in a Dockerfile to accomplish this goal?

A.EXPOSE 8080
B.FIREWALL ADD-PORT 8080
C.PORT 8080
D.OPEN PORT 8080

正解:

Question No : 4
A DevOps engineering wants to build an application implementation based on the CI/CD pipeline model.
Which service should be used to provide hosted continuous service for open and private projects?

A.Ansible
B.pyATS
C.Genie CLI
D.Travis CI

正解:

Question No : 5
DRAG DROP
Drag and drop the operations from the left into the correct order on the right when using CI/CD, assuming that there are no failures or conflicts.

正解:

Question No : 6
Refer to the exhibit.

What is causing the requests code to fail?

A.Rython3 is not compatible with requests.
B.The requests library is not imported.
C.The requests library is not installed.
D.The requests coming into stdin fail because device_ip cannot be parsed.

正解:

Question No : 7
Which description of a canary deployment is true?

A.deployment by accident
B.deployment that is rolled back automatically after a configurable amount of minutes
C.deployment relating to data mining development
D.deployment to a limited set of servers or users

正解:

Question No : 8
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?

A.recreate
B.blue/green
C.rolling
D.canary

正解:

Question No : 9
Configuration changes to the production network devices are performed by a CI/CD pipeline. The code repository and the CI tool are running on separate servers. Some configuration changes are pushed to the code repository, but the pipeline did not start.
Why did the pipeline fail to start?

A.The CI server was not configured as a Git remote for the repository.
B.The webhook call from the code repository did not reach the CI server.
C.Configuration changes must be sent to the pipeline, which then updates the repository.
D.The pipeline must be started manually after the code repository is updated.

正解:

Question No : 10
Refer to the exhibit.

How should the Jenkins job be troubleshooted based on the error provided?

A.Verify what the responding file created.
B.Update pip.
C.Install dependencies.
D.Place the code in a container and run the job again.

正解:

Question No : 11
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?

A.soak testing
B.unit testing
C.load testing
D.volume testing

正解:

Question No : 12
A CI/CD pipeline that builds infrastructure components using Terraform must be designed. A step in the pipeline is needed that checks for errors in any of the .tf files in the working directory. It also checks the existing state of the defined infrastructure.
Which command does the pipeline run to accomplish this goal?

A.terraform plan
B.terraform check
C.terraform fmt
D.terraform validate

正解:

Question No : 13
Which two practices help make the security of an application a more integral part of the software development lifecycle? (Choose two.)

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.

正解:

Question No : 14
A DevOps engineer must validate the working state of the network before implementing a CI/CD pipeline model.
Which configuration management tool is designed to accomplish this?

A.Jenkins
B.Genie CLI
C.Travis CI
D.Python YAML data libraries

正解:

Question No : 15
DRAG DROP
The IaC configuration for an application is being deployed using a CI/CD pipeline.
Drag and drop the steps for this pipeline from the left into the correct order that they would be executed on the right. Not all options are used.

正解:

Cisco 300-910 問題練習