Cisco Cisco Certified DevNet Professional 300-910 Questions & Answers

• Question 41:

  What is the impact of using the Drone.io CI/CD tool on the local installation step?

  A. slows down the development

  B. delays the deployment of components

  C. speeds up the procedure

  D. complicates the application process

  Correct Answer: C

• Question 42:

  An application for storing and categorizing has been developed. The application uses dual- factor authentication for user access. After authentication, users can upload sensitive data. The application has been hacked through system exploits and most of the saved data has been lost.

  Which action prevents new security threats in the environment?

  A. Use self-developed algorithms for encryption

  B. Install virtual firewalls

  C. Actively change the ISP provider

  D. Apply all the latest patches and updates

  Correct Answer: D

• Question 43:

  An application is being developed to be used by the HR department of a company on a global scale. The application will be used as a central repository for employee contracts. For user access, a RADIUS server will be used with authorized user groups.

  Which action must be used to prevent developers from accidentally committing secrets in the code?

  A. Add a unit test to block the secrets

  B. Add a precommit Git hook to block the secrets

  C. Add dast to the repository to block the secrets

  D. Add a job in the CI build to block the secrets

  Correct Answer: A

• Question 44:

  Refer to the exhibit.

  

  The JSON object represents a single entry on a centralized log server, but log data cannot be processed because of the format.

  What causes the issue?

  A. A hostgroup must be defined

  B. The "_type" must represent the process type

  C. The priority of the message must be to the server

  D. The process name in the message must be parsed into a field

  Correct Answer: D

• Question 45:

  A team must roll out updates on the production instance of an application. To avoid any service down time, the new version must be released alongside the old version. After the team ensures that the new version operates as it should, traffic will be redirected to the new version. Then the old version will be shut down.

  Which deployment strategy must be used?

  A. rolling

  B. blue/green

  C. shadow

  D. canary

  Correct Answer: B

  The new version of the application is deployed to one of the environments, and then traffic is gradually shifted to the updated environment. This strategy allows the team to test the new version before releasing it to the public, ensuring that it is operating as expected. After the new version is tested and approved, traffic is fully shifted to the new environment and the old environment is shut down.

• Question 46:

  Refer to the exhibit.

  

  The IT team is creating a new design for a logging system. The system must be able to collect logs from different components of the infrastructure using the SNMP protocol. When the data is collected it will need to be presented in a graphical UI to the NOC team.

  What is the architectural component that needs to be placed in the unlabeled box to complete this design?

  A. message queue

  B. web server

  C. log parser D. time-series database

  Correct Answer: C

  A log parser is a software component that is used to collect and parse log data from various sources, such as infrastructure devices, applications, and services. It is responsible for collecting log data from the various sources and then mapping it to a specific format that can be easily consumed and interpreted by the NOC team. The log parser can also be used to filter out irrelevant data and store the processed data in a time- series database. This data can then be used by the NOC team to generate visualizations and reports, which will help them identify and address any issues within the infrastructure. (Source: Cisco Implementing DevOps Solutions and Practices using Cisco Platforms (DEVOPS) Study Manual Chapter 5, Understanding Logging and Log Analysis)

• Question 47:

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

  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

  Correct Answer: D

• Question 48:

  What is a benefit of Infrastructure as Code for the cloud?

  A. It groups system downtime across the infrastructure

  B. It enables the user to automate deployments

  C. It does not require configuration.

  D. It is a cost effective solution for services

  Correct Answer: B

• Question 49:

  Which Dockerfile yields the most predictable builds?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

• Question 50:

  What is a capability of node-level logging in Kubernetes?

  A. Using the Kubernetes JSON logging driver enables log persistence

  B. Output that is written to stdin is retrieved by using kubectl

  C. Output that is written to stderr is not logged or retrievable by using kubectl

  D. Using the local logging driver of Docker enables log persistence

  Correct Answer: D