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Cisco 300-910 exam is a professional-level certification test that focuses on the implementation of DevOps solutions and practices using Cisco platforms. 300-910 exam is designed for IT professionals who work with Cisco technologies and are interested in implementing DevOps solutions to improve their organization's software development process. 300-910 exam covers a range of topics related to DevOps, including automated testing, continuous integration and delivery, containerization, and infrastructure as code.
NEW QUESTION # 17
Which approach must be used to integrate DevOps practices into the team structure in an existing organization?
- A. Create a team for each stage with structured communication channels
- 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 that can deliver all the stages with active cooperation between the team members
- D. Create a team for each stage with active cooperation between the teams
Answer: C
NEW QUESTION # 18 
Refer to the exhibit. The exhibit shows the output of an Ansible task that prints the contents of the show_ip_int_brief variable that was registered in a different task in the playbook.
Which expression is used to print the output of the command without its header row?
- A. show_ip_int_brief['stdout_lines'][0]
- B. show_ip_int_brief['stdout_lines']
- C. show_ip_int_brief['stdout_lines'][0][1:]
- D. show_ip_int_brief['stdout_lines'][1:]
Answer: D
Explanation:
Section: Automating Infrastructure
Explanation
NEW QUESTION # 19
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.
Answer:
Explanation:
NEW QUESTION # 20
Which interface is most commonly used to integrate logging, monitoring, and alerting applications into your CI/ CD pipeline?
- A. REST
- B. SSH
- C. SNMP
- D. AMQP
Answer: B
Explanation:
Section: Logging, Monitoring, and Metrics
NEW QUESTION # 21
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 # 22
FILL BLANK
Fill in the blanks to complete the statement.
When creating multiple containers, in order to allow communication with each other, you must create a
__________ of type _________ .
Answer:
Explanation:
pod, volume
Section: Packaging and Delivery of Applications
NEW QUESTION # 23
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. Configuration changes must be sent to the pipeline, which then updates the repository.
- B. The CI server was not configured as a Git remote for the repository.
- C. The pipeline must be started manually after the code repository is updated.
- D. The webhook call from the code repository did not reach the CI server.
Answer: D
Explanation:
Explanation
A webhook is basically a callback URL that is triggered when certain events occur, such as a code commit. If the webhook call from the code repository does not reach the CI server, then the pipeline will not start.
According to the Cisco Implementing DevOps Solutions and Practices using Cisco Platforms (DEVOPS) Study Manual, "A webhook is a web-based feature that enables a remote service to communicate with a local service, usually through a web server. Webhooks are used to trigger an action when a specific event occurs, usually in a remote service or application."
NEW QUESTION # 24
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. Genie CLI
- D. Python YAML data libraries
Answer: C
Explanation:
Explanation
Genie CLI is a configuration management tool that is designed to validate the working state of the network before implementing a CI/CD pipeline model. Genie CLI provides a set of commands that can be used to check the state of the network, view logs, and make changes to network configurations. It is a powerful tool for validating the state of the network before making changes, and can help avoid costly mistakes or unexpected issues.
NEW QUESTION # 25
Refer to the exhibit.
What are the properties of the load balancer in a Kubernetes environment?
- A. Forwards any outgoing traffic from the port named nginx-port to exposed ports http-port1 and http-port2 of nginxapp
- B. Forwards incoming traffic from the port named nginx-port to ports 80 and 8080 of nginxapp
- C. Has exposed ports 80 and 8080 to a private IP address and directs outgoing connections to the port named http-port1
- D. Has exposed ports 80 and 8080 to a public IP address and directs incoming connections to the port named nginx-port
Answer: D
NEW QUESTION # 26
Refer to the exhibit.
What is causing the requests code to fail?
- A. The requests library is not installed.
- B. The requests library is not imported.
- C. The requests coming into stdin fail because device_ip cannot be parsed.
- D. Rython3 is not compatible with requests.
Answer: B
NEW QUESTION # 27
A developer is creating an application based on microservices. The application will be used as a central repository for all company's documents. One of the microservices in the application will perform image processing. This microservice must autoscale to meet the current load and avoid down time.
Which metric must be used to trigger autoscaling events?
- A. disk I/O
- B. network
- C. memory
- D. CPU/GPU
Answer: D
NEW QUESTION # 28
Refer to the exhibit.
What is causing the requests code to fail?
- A. The requests library is not installed.
- B. The requests library is not imported.
- C. The requests coming into stdin fail because device_ip cannot be parsed.
- D. Rython3 is not compatible with requests.
Answer: B
NEW QUESTION # 29
Fill in the blanks to complete the line of Python code that sends a message to a Webex Teams room or person.
Answer:
Explanation:
post, messages
NEW QUESTION # 30
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. Team members must be responsible for the code committed by any team member
- B. Changes must be scheduled to deploy at a specific time that has minimal traffic
- C. Smaller, individually testable changes must be merged first
- D. Changes must be validated during deployment to the production environment
- E. Changes must include automated tests
Answer: D,E
NEW QUESTION # 31
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.
Answer:
Explanation:
NEW QUESTION # 32
Refer to the exhibit.
Which CI solution uses this file?
- A. Travis CI
- B. GitLab CI
- C. Drone
- D. Jenkins
Answer: C
Explanation:
Explanation
syntax for GitLab CI, Travis CI & Jenkins are "stage...", while Drone use "steps..." Here are the configuration files I referred https://docs.drone.io/pipeline/environment/syntax/
https://docs.gitlab.com/ee/ci/yaml/includes.html
https://blog.travis-ci.com/2019-05-30-setting-up-a-ci-cd-process-on-github
https://www.jenkins.io/doc/pipeline/examples/
NEW QUESTION # 33
What is chaos engineering?
- A. introducing problems into a system to study behavior and improve reliability
- B. splitting a project between teams that do not communicate with each other
- C. a product engineering approach that lacks a formal methodology
- D. designing an application with fuzzy logic that makes it hard to predict
Answer: A
NEW QUESTION # 34
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 capture the routing table before the change, and add a step after the change to capture it again. Calculate the difference between the two for review.
- B. Add a step to ping a host on each of the static routes before the change, and a step after to repeat the same check. Calculate the difference between the two checks for review.
- C. 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.
- D. 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.
Answer: A
NEW QUESTION # 35
Which Kubernetes object ensures that each node is limited to running no more than one pod?
- A. ReplicaSet
- B. Deployment
- C. DaemonSet
- D. UniCast
Answer: C
NEW QUESTION # 36
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. blue/green
- B. recreate
- C. rolling
- D. canary
Answer: D
NEW QUESTION # 37
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 # 38
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. data=json_data)
- B. respone= request.post(url. json=json_data)
- C. respone= request.post(url. json=json.loads(json_data)
- D. respone= request.post(url, data=json=(json_data)
Answer: A
NEW QUESTION # 39
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Cisco 300-910 certification exam is designed to test the knowledge and skills of candidates in implementing DevOps solutions and practices using Cisco platforms. Implementing DevOps Solutions and Practices using Cisco Platforms certification is ideal for professionals who want to enhance their proficiency in DevOps methodologies and tools, as well as their ability to design and implement solutions using Cisco technology.
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