300-910 Exam - Implementing DevOps Solutions and Practices using Cisco Platforms (DEVOPS)

NEW QUESTION 1
A user wants to deploy a new service to a Kubernetes cluster. Which two commands accomplish this goal? (Choose two.)

• A. Apply
• B. Install
• C. Deploy
• D. Create
• E. Expose

Answer: AE

NEW QUESTION 2

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.

Answer: B

NEW QUESTION 3
A developer is nearing the end of a software development cycle and is ready to deploy the software. The customer wants to continue using a secure software development lifecycle methodology and must plan for postproduction components. Which two areas should be the developer address? (Choose two.)

• A. performing code reviews
• B. requirement gathering
• C. change management process
• D. new code scanning
• E. rollback plans

Answer: AC

NEW QUESTION 4
What is the purpose of using a build tool in software development?

• A. It complies source code into binaries and executables.
• B. It provides a way to edit source code using a graphical interface.
• C. It is a manual process that is followed to build software.
• D. It tracks bugs and incidents in a built application.

Answer: A

NEW QUESTION 5
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}

Answer: B

NEW QUESTION 6
Which step must be taken to enable centralized logging in a Kubernetes environment?

• A. No steps need to be take
• B. The master node automatically aggregates logs from all worker nodes and stores them on the specified persistent volume.
• C. Create a CustomResourceDefinition in each deployment that specifies the IP or names the log collector.
• D. Deploy a sidecar node that aggregates logs from the entire cluster.
• E. Create a DaemonSet that deploys a container with a logging agent on every node in the cluster.

Answer: C

NEW QUESTION 7
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?

• A. active
• B. passive
• C. active-passive
• D. active-active

Answer: C

NEW QUESTION 8
The E-commerce application is being monitored using AppDynamics. AppDynamics has noticed that the application response has degraded and has identified some thread contention that might be the cause of the delays.
Where in the interface does AppDynamics bring this to your attention?

• A. Potential Issues section of an individual transaction
• B. Transaction Score graph of a business transaction
• C. Code Deadlock section of the Event List
• D. Slow Calls and Errors tab of the application

Answer: A

NEW QUESTION 9
When static routes are added to a router in a network using a CI/CD pipeline, an Ansible playbook is used to make these changes. Which steps must be added to the pipeline to validate that the changes have the intended effect on the traffic flow?

• A. Add a step to run the debug ip routing command before the change, and add a step after the change to issue the no debug ip routing command.
• B. Add a step to capture the routing table before the change, and add a step after the change to capture it agai
• C. Calculate the difference between the two for review.
• D. Add a step to ping a host on each of the static routes before the change, and a step after to repeat the same chec
• E. Calculate the difference between the two checks for review.
• F. Add a step to run the same playbook again with the debug option enabled and use grep on the log output to ensure that the commands are not applied again.

Answer: B

NEW QUESTION 10
Which two statements about Infrastructure as Code are true? (Choose two.)

• A. Test-driven development practices make use of Infrastructure as Code.
• B. Infrastructure as Code refers to automated testing libraries.
• C. DevOps builds upon Infrastructure as Code.
• D. Infrastructure as Code is based on practices from software development.
• E. Infrastructure as Code must use the same programming language as the application.

Answer: AD

NEW QUESTION 11
When DevOps practices are integrated into an existing organization, which two characteristics are positive indicators of DevOps maturity? (Choose two.)

• A. mean time between success
• B. mean time to recover
• C. cone testing
• D. change lead time
• E. age of codebase

Answer: BD

NEW QUESTION 12
What is chaos engineering?

• A. designing an application with fuzzy logic that makes it hard to predict
• B. a product engineering approach that lacks a formal methodology
• C. splitting a project between teams that do not communicate with each other
• D. introducing problems into a system to study behavior and improve reliability

Answer: D

NEW QUESTION 13

Refer to the exhibit. A developer needs to scale the existing pods within the worked nodes. Which object should be edited to achieve this goal?

• A. ReplicaSet
• B. PriorityClass
• C. Deployment
• D. Pod

Answer: A

NEW QUESTION 14
Which Kubernetes object is used to create a ClusterIP or NodePort?

• A. service
• B. pod
• C. deployment
• D. loadbalancer

Answer: A

NEW QUESTION 15
Which Docker command is used to start an interactive Bash shell in a running container named “test”?

• A. docker attach -it test /bin/bash
• B. docker run -it test /bin/bash
• C. docker exec -it test /bin/bash
• D. docker run test /bin/bash

Answer: C

NEW QUESTION 16
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

Answer: B

NEW QUESTION 17
Which two characteristics of a build tool that is used in an automated build pipeline? (Choose two.)

• A. It runs unit tests against code that is committed.
• B. It builds your software on the production environment.
• C. It builds your software when changes are committed.
• D. It builds your software every 500 milliseconds.
• E. It must have a plug-in for Puppet and Maven.

Answer: AC

NEW QUESTION 18
Which interface is most commonly used to integrate logging, monitoring, and alerting applications into your CI/CD pipeline?

• A. AMQP
• B. SNMP
• C. SSH
• D. REST

Answer: C

NEW QUESTION 19
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

Answer: A

NEW QUESTION 20
What is as responsibility for teams running private cloud servers that is less of a concern when running in the public cloud?

• A. cost
• B. metrics and monitoring
• C. hardware maintenance
• D. credentials management

Answer: D

NEW QUESTION 21
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