300-910 Tested & Approved Cisco Certified DevNet Professional Study Materials
Validate your Skills with Updated Cisco Certified DevNet Professional Exam Questions & Answers and Test Engine
Cisco 300-910 exam, also known as Implementing DevOps Solutions and Practices using Cisco Platforms, is a certification exam that is designed for IT professionals who want to demonstrate their skills and knowledge in DevOps practices and solutions using Cisco platforms. 300-910 exam is aimed at professionals who have experience in implementing and managing applications and infrastructure using Cisco technology.
Earning the Cisco 300-910 certification indicates that an IT professional has the skills and knowledge necessary to implement DevOps solutions using Cisco platforms and technologies. It demonstrates their proficiency in containerization, automation, CI/CD, monitoring, and collaboration, as well as their ability to work with Cisco platforms such as ACI, UCS, and CloudCenter Suite. Implementing DevOps Solutions and Practices using Cisco Platforms certification can help IT professionals advance their careers by opening up new opportunities in DevOps and cloud computing.
NEW QUESTION # 47
Fill in the blank to complete the statement.
A user wants a Kubernetes deployment to run three separate pods of a web application at one time. In the deployment YAML, the user must configure the___________field in the________subsection.
- A. replicasspec
Answer: A
NEW QUESTION # 48
What is the purpose of using a build tool in software development?
- A. It tracks bugs and incidents in a built application.
- 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 complies source code into binaries and executables.
Answer: D
Explanation:
Section: Packaging and Delivery of Applications
NEW QUESTION # 49 
Refer to the exhibit. What is the user doing with Drone in this automated test?
- A. testing Alpine Linux versus Ubuntu Linux
- B. testing only the amd64 architecture
- C. testing PostgreSQL deployment in an Alpine Linux VM
- D. testing a PostgreSQL DB against multiple architectures
Answer: C
Explanation:
Section: Automating Infrastructure
NEW QUESTION # 50
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. Travis CI
- B. Jenkins
- C. Python YAML data libraries
- D. Genie CLI
Answer: B
NEW QUESTION # 51
A DevOps engineer is supporting a containerized application with multiple components running across the Kubernetes cluster. Metrics from the container (CPU and memory) and application (requests per second and heap size) are being collected by Prometheus and displayed with Grafan a. Users report transaction timeout problems with the application, but the metric graphs all look within normal levels.
Which type of failure would prevent the engineer from seeing the problem using the captured metrics?
- A. The metricbeat agent has crashed and is no longer sending new data to Prometheus, so the metrics are not updating.
- B. Some containers are crashing regularly and being restarted automatically by Kubernetes.
- C. CPU and memory metrics from Kubernetes nodes are not accurate due to the way that containers share resources.
- D. Grafana has lost connectivity to Prometheus, which causes graphs to display only the cached data.
Answer: A
NEW QUESTION # 52
ConfigMap keys have been mapped to different file names using the volumes.configMap.items field. What is the result if a wrong ConfigMap key is specified?
- A. The default path is not used.
- B. The volume is created with errors.
- C. The volume is not created.
- D. The volume is created.
Answer: C
Explanation:
If a wrong ConfigMap key is specified, the volume will not be created since the ConfigMap key must match the name of the item specified in the volumes.configMap.items field.
NEW QUESTION # 53 
Refer to the exhibit. A developer is creating a health check monitoring script that queries information from the Cisco DNA Center platform. The script must trigger an alert if a site health statistic named accessGoodCount drops below 80 and if a network statistic named latestHealthScore is 95 or less.
Drag and drop the code snippets from the bottom onto the blanks in the code to monitor the site and network health on a Cisco DNA Center platform instance. Options may be used more than once. Not all options are used.
Answer:
Explanation:
Explanation
1. 'timestamp'
2. url = BASE_URL + SITE_HEALTH
3. params
4. url = BASE_URL + NETWORK_HEALTH_URL
5. params
NEW QUESTION # 54
When DevOps practices are integrated into an existing organization, which two characteristics are positive indicators of DevOps maturity? (Choose two.)
- A. cone testing
- B. mean time between success
- C. age of codebase
- D. mean time to recover
- E. change lead time
Answer: D,E
NEW QUESTION # 55
Refer to the Exhibit.
Answer:
Explanation:
NEW QUESTION # 56
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. Pod
- B. PriorityClass
- C. ReplicaSet
- D. Deployment
Answer: C
NEW QUESTION # 57
Construct an Ansible script to gather information about target routers and then use it to apply no ip redirects to every interface on each device. Drag and drop the code from the bottom onto the correct location in the exhibit to complete the tasks section of the Ansible playbook so that it accomplishes your goal.
Answer:
Explanation:
NEW QUESTION # 58
Refer to the exhibit.
What is the reason for this error message?
- A. The required dependencies for the requests module are not installed.
- B. The required dependencies for the urllib3 module are not installed.
- C. The requests module is not installed.
- D. The site-packages directory has been corrupted.
Answer: C
NEW QUESTION # 59
Refer to the Exhibit.
Refer to the exhibit. A containerized application that leverages a container host VM must be deployed. Drag and drop the events on the left onto their related steps on the right in order to describe the sequence behind the process.
Answer:
Explanation:
NEW QUESTION # 60
What is the purpose of using a build tool in software development?
- A. It tracks bugs and incidents in a built application.
- 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 complies source code into binaries and executables.
Answer: D
NEW QUESTION # 61
Which description of a canary deployment is true?
- A. deployment to a limited set of servers or users
- B. deployment that is rolled back automatically after a configurable amount of minutes
- C. deployment relating to data mining development
- D. deployment by accident
Answer: A
NEW QUESTION # 62
What is a benefit of monitoring the CI/CD pipeline?
- A. proactively deploys new servers if needed
- B. troubleshoots distributed systems performance
- C. analyzes network outages that affect the network and server infrastructure
- D. provides insight into how efficiently the development team is operating
Answer: D
NEW QUESTION # 63
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.)
- A. agent
- B. node
- C. event
- D. app
- E. tier
Answer: B,D
NEW QUESTION # 64
What are two reasons a Docker golden image should be updated? (Choose two.)
- A. when a fix for a security vulnerability is released
- B. when the application has a new release
- C. when there is a change to a username or password in the Docker secrets
- D. when a change is needed to an environment variable in the Dockerfile
- E. when the base image is nearing the end of life
Answer: A,B
NEW QUESTION # 65
Refer to the exhibit.
A docker-compose.yml file implements a postgres database container.
Which .gitlab-ci.yml code block checks the health status of the container and stops the pipeline if the container is unhealthy?
A)
B)
C)
D)
- A. Option B
- B. Option C
- C. Option A
- D. Option D
Answer: B
NEW QUESTION # 66
Refer to the exhibit.
A development team is designing an application that will include multiple components and services. To streamline the process, CO/CD must be implemented.
Drag and drop the CI/CD pipeline stages from the left onto the targets on the right.
Answer:
Explanation:
NEW QUESTION # 67
Which two actions help limit the attack surface of your Docker container? (Choose two.)
- A. Use version tags for base images and dependencies.
- B. Run all services in a single image.
- C. Run only a single service in each container.
- D. Download images over HTTPS supporting sites.
- E. Use Kali Linux as a base image.
Answer: A,C
Explanation:
Explanation
Running only a single service in each container and using version tags for base images and dependencies helps limit the attack surface of your Docker container. This ensures that only the necessary services are running and that you always have the latest versions of the base images and their dependencies, reducing the risk of malicious code being included in the container image. Reference: Docker Documentation, Security Best Practices.
NEW QUESTION # 68
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:
* A subset of the users of the original service must be migrated to the new service based on their profile
* The new service must be rolled back easily if capacity exceeds estimates Which deployment strategy must be used?
- A. rolling
- B. geolocation
- C. blue/green
- D. canary
Answer: D
NEW QUESTION # 69
Refer to the exhibit.
What is the reason for this error message?
- A. The required dependencies for the requests module are not installed.
- B. The required dependencies for the urllib3 module are not installed.
- C. The requests module is not installed.
- D. The site-packages directory has been corrupted.
Answer: C
NEW QUESTION # 70
Refer to the Exhibit.
Answer:
Explanation:
NEW QUESTION # 71
An application is being built to collect and display telemetry streaming data. Drag and drop the elements of this stack from the left onto the correct functions on the right.
Answer:
Explanation:
NEW QUESTION # 72
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