Cisco Cisco Certified DevNet Professional 300-910 Questions & Answers

• Question 31:

  Which approach must be used to integrate DevOps practices into the team structure in an existing organization?

  A. Create a team that can deliver all the stages with active cooperation between the team members

  B. Create a team that can deliver all the stages with well-defined roles and a communication structure between team members

  C. Create a team for each stage with structured communication channels

  D. Create a team for each stage with active cooperation between the teams

  Correct Answer: A

• Question 32:

  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?

  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

  Correct Answer: D

  This ensures that the change is applied in the same environment that it was tested in, and that the pipeline will pass. This is in accordance with the rule of a CI/CD pipeline that states that the same environment should be used for testing and deploying code into production. As stated in the Cisco Implementing DevOps Solutions and Practices using Cisco Platforms (DEVOPS) Study Manual, "the same environment should be used for testing and deploying code into production, or the pipeline will fail."

• Question 33:

  An IT team plans to deploy a new service built on top of an existing service. The capacity needed for the new service is difficult to estimate because the demand for the new service is undetermined. The team has these deployment requirements:

  1.

  A subset of the users of the original service must be migrated to the new service based on their profile

  2.

  The new service must be rolled back easily if capacity exceeds estimates

  Which deployment strategy must be used?

  A. rolling

  B. blue/green

  C. geolocation

  D. canary

  Correct Answer: D

• Question 34:

  What is an advantage of using configuration management tools to automate infrastructure services?

  A. eliminates the need to run integration tests within the CI/CD pipeline

  B. provides high native monitoring of services

  C. eliminates the need for CI/CD tools

  D. integrates with container orchestration

  Correct Answer: C

• Question 35:

  Refer to the exhibit.

  

  The snippet contains the JSON string that will be sent to the Prometheus AlertManager to silence an alert. AlertManager accepts only the content type of application 'json'' Which Python code correctly sends an API call to perform action?

  A. respone= request.post(url. json=json_data)

  B. respone= request.post(url. json=json.loads(json_data)

  C. respone= request.post(url. data=json_data)

  D. respone= request.post(url, data=json=(json_data)

  Correct Answer: C

• Question 36:

  Refer to the exhibit.

  

  The text represents a syslog message sent from a Linux server to a centralized log system.

  Based on the format of the log message, how must the functionality of the log parser be extended to improve search capabilities?

  A. Reverse lookup the IP address to add a hostname field

  B. Convert the date to the time zone of the system

  C. Configure the Linux machine to add a UID field to messages

  D. Filter out the text of the message to speed up searches

  Correct Answer: A

• Question 37:

  Refer to the exhibit.

  

  How does the architecture respond to a usage spike?

  A. The monitoring software instructs the Orchestrator to increase the count of containers and to configure the load balancer accordingly

  B. The database prioritizes quick and immediate queries over complicated ones to reduce the request queue

  C. The Orchestrator increases the resources assigned to containers to increase performance

  D. The load balancer interacts with the Orchestrator to optimize the balancing algorithm to match the incoming flow of requests

  Correct Answer: D

• Question 38:

  What is a practice of infrastructure as code?

  A. Use multiple version control systems

  B. Document as much as possible

  C. Configure the deployment consistently

  D. Test, integrate, and deploy once a day

  Correct Answer: C

• Question 39:

  An organization is developing an application using Git. Each team member is assigned to work on specific parts of the application. At the end of each task, individual code parts are merged in the main build.

  Which two requirements should be implemented to increase the likelihood of continuous integration? (Choose two.)

  A. Changes must be scheduled to deploy at a specific time that has minimal traffic

  B. Changes must include automated tests

  C. Changes must be validated during deployment to the production environment

  D. Smaller, individually testable changes must be merged first

  E. Team members must be responsible for the code committed by any team member

  Correct Answer: BC

• Question 40:

  What is the purpose of using sysprep when developing a Microsoft Windows-based golden image process?

  A. prepares a new host to accept a hard drive image built on another machine

  B. removes all host-specific information and components from the local machine

  C. installs all the latest security patches and OS updates to the local machine

  D. writes the local hard drive image to an ISO file that can be deployed to another machine

  Correct Answer: B