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

Questions 4

A company has experienced serious growth and the hosted applications are getting more and more hits. Based on the increased work load, applications have started to show signs of reduced performance, which is affecting the user experience.

Which two server metrics should be tracked to ensure that the customer experience remains within acceptable limits? (Choose two.)

Options:

A.

application feature sprawl

B.

CPU peak usage

C.

CPU average usage

D.

microservices count

E.

CPU frequency

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Questions 5

-

A developer is creating an application where each service uses a different operating system. The application components need to be isolated but must have the ability to communicate with each other.

Drag and drop the entries from the left into the order on the right to create a Dockerfile that will accomplish this goal.

300-910 Question 5

Options:

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Questions 6

As a department starts following NetDevOps principles, how should the network monitoring strategy be updated to provide more visibility into the user experience?

Options:

A.

Leverage machine learning tools to more quickly identify problems m syslog and SNMP data

B.

Update tools to pull or stream monitoring metrics from APIs instead of using legacy protocols

C.

Identify and capture the key performance indicators that describe the state of the network

D.

Identify and fix network issues faster by leveraging streaming telemetry from network devices

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Questions 7

Drag and drop the tools from the left onto the tools function on the right Not all options are used.

300-910 Question 7

Options:

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Questions 8

An application has been designed based on microservices. The application is deployed on Kubernetes using multiple pods that share the same IP address. Each pod is responsible for a service in the application.

Which command validates the success of the application deployment?

Options:

A.

kubectl get pods -o wide -w

B.

kubectl rollout status deployment

C.

kubectl describe pods/

D.

kubectl rollout history deployment

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Questions 9

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.

Options:

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Questions 10

Drag and drop the code from the bottom onto the box where the code is missing to create a Terraform configuration that builds the network environment for a multitier software application. More EPG, Contract, and Filter definitions have been removed from the code.

300-910 Question 10

Options:

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Questions 11

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?

Options:

A.

recreate

B.

blue/green

C.

rolling

D.

canary

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Questions 12

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?

Options:

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 again. Calculate the difference between the two for review.

C.

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.

D.

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.

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Questions 13

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

Options:

A.

slows down the development

B.

delays the deployment of components

C.

speeds up the procedure

D.

complicates the application process

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Questions 14

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.

300-910 Question 14

Options:

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Questions 15

Refer to the exhibit.

300-910 Question 15

An application for data storing and processing has been created. The application is time-sensitive and manages confidential data AppDynamics identifies error transactions within a distributed application.

Which action will help resolve the errors?

Options:

A.

Rewrite the SQL query identified in the transaction to be more efficient

B.

Log in to the node directly and investigate the errors by reviewing log files

C.

Drill down to investigate and identify the errors

D.

Scale out the node horizontally

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Questions 16

Refer to the exhibit.

300-910 Question 16

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?

Options:

A.

message queue

B.

web server

C.

log parser

D.

time-series database

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Questions 17

Refer to the exhibit.

300-910 Question 17

A developer is creating a script to test APIs. The Cisco Webex API and a CI/CD pipeline are tested to ensure that the script runs without problems. The script is executed without issues locally, but the CI/CD system returns the error shown. What is the problem with the script?

Options:

A.

The CI/CD system is configured incorrectly to import the dependencies to the code

B.

The code is pushed incorrectly to the CI/CD system

C.

The version of Python is wrong in the CI/CD pipeline

D.

The CI/CD system is configured incorrectly to download the required dependencies

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Questions 18

Drag and drop the code from the bottom onto the box where the code is missing to post a message to a Cisco Webex space. Not all options are used.

300-910 Question 18

Options:

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Questions 19

Refer to the exhibit.

300-910 Question 19

300-910 Question 19

How should the Jenkins job be troubleshooted based on the error provided?

Options:

A.

Verify what the responding file created.

B.

Update pip.

C.

Install dependencies.

D.

Place the code in a container and run the job again.

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Questions 20

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?

Options:

A.

The default path is not used.

B.

The volume is not created.

C.

The volume is created.

D.

The volume is created with errors.

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Questions 21

Refer to the exhibit.

300-910 Question 21

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?

Options:

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)

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Questions 22

Refer to the exhibit.

300-910 Question 22

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?

Options:

A.

show_ip_int_brief[‘stdout_lines’][0]

B.

show_ip_int_brief[‘stdout_lines’][1:]

C.

show_ip_int_brief[‘stdout_lines’][0][1:]

D.

show_ip_int_brief[‘stdout_lines’]

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Questions 23

Drag and drop the code snippets from the bottom onto the boxes in the code in the Ansible playbook to restart multiple services in the correct sequence Not all options are used

300-910 Question 23

Options:

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Questions 24

300-910 Question 24

300-910 Question 24

Refer to the exhibit A DevOps engineer is responsible for monitoring a mission-critical app During normal operations, when opening the application dashboard, it has been noticed that Ecom-Tier1 suddenly turns partially red Which action must be taken to address the Ecom-Tier1 turning red?

Options:

A.

Restart the service to re-establish the connection with the nodes and clear the path.

B.

Decrease the load on the MySQL databases to release the hardware resources available for node distribution

C.

Check with the planning team to understand if the number of nodes in the Ecom tier can be increased to handle traffic

D.

Contact the network team to investigate the network path that caused this intermittent issue around 9.10.

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Questions 25

Refer to the exhibit.

300-910 Question 25

Which CI solution uses this file?

Options:

A.

Drone

B.

GitLab CI

C.

Travis CI

D.

Jenkins

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Questions 26

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.

300-910 Question 26

Options:

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Questions 27

An application communicates with multiple third-party services that use API keys When stress testing the system, developers must change the URLs of the third-party services The application must run on port 5000. but the developers must be able to change the port at runtime if required Which configuration management approach simplifies the development workflow and reduces the configuration changes?

Options:

A.

secrets

B.

sane defaults

C.

application parameters

D.

config maps

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Questions 28

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

Options:

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

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Questions 29

Refer to the exhibit.

300-910 Question 29

What is the reason for this error message?

Options:

A.

The required dependencies for the urllib3 module are not installed.

B.

The requests module is not installed.

C.

The required dependencies for the requests module are not installed.

D.

The site-packages directory has been corrupted.

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Questions 30

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?

Options:

A.

The CI server was not configured as a Git remote for the repository.

B.

The webhook call from the code repository did not reach the CI server.

C.

Configuration changes must be sent to the pipeline, which then updates the repository.

D.

The pipeline must be started manually after the code repository is updated.

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Questions 31

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?

Options:

A.

rolling

B.

blue/green

C.

geolocation

D.

canary

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Questions 32

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

Options:

A.

cost

B.

metrics and monitoring

C.

hardware maintenance

D.

credentials management

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Questions 33

A CI/CD pipeline that builds infrastructure components using Terraform must be designed. A step in the pipeline is needed that checks for errors in any of the .tf files in the working directory. It also checks the existing state of the defined infrastructure.

Which command does the pipeline run to accomplish this goal?

Options:

A.

terraform plan

B.

terraform check

C.

terraform fmt

D.

terraform validate

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Questions 34

Refer to the exhibit.

300-910 Question 34

A distributed application contains data services that connect to databases via JDBC and to other remote services via HTTP. The overall response time is too long, and AppDynamics is used to investigate the root cause. From the application flow map, a specific data service running on Docker has been identified whose response time is over 10 seconds.

Which action resolves the issue?

Options:

A.

Change from a JDBC call to a HTTP call to retrieve data faster

B.

Run the AccountProfileMySQL service in Kubernetes

C.

Explore the JDBC queries looking for optimization opportunities

D.

Verify if the Docker container running MySQL is limiting CPU utilization

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Questions 35

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

Options:

A.

mean time between success

B.

mean time to recover

C.

cone testing

D.

change lead time

E.

age of codebase

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Questions 36

An engineer is developing a script that must call an API using a static Bearer token Which solution securely protects the credentials from being retrievable from the source code?

A)

A)

300-910 Question 36

B)

300-910 Question 36

C)

300-910 Question 36

D)

300-910 Question 36

Options:

A.

Option A

B.

Option B

C.

Option C

D.

Option D

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Questions 37

A precheck validation is being designed for the network state in a Cl/CD pipeline This design requires:

• the CI/CD pipeline to spin up test instances.

• instances must be used to validate changes.

• changes must be validated prior to a continuous deployment workflow, and

• then push the changes to production

How should the pipeline target the required environment?

Options:

A.

Use separate CI servers for each environment

B.

Use different pipelines for each environment

C.

Use separate Git repositories for each environment

D.

Use different inventory files for each environment

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Questions 38

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?

Options:

A.

Jenkins

B.

Genie CLI

C.

Travis CI

D.

Python YAML data libraries

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Questions 39

How does eliminating hardcoded or default passwords help to secure an environment?

Options:

A.

helps by enforcing your password in a repository and storing it in a secure vault

B.

helps to manage passwords centrally

C.

helps penetration testing team to focus on other issues more efficiently

D.

helps by removing back doors in your environments

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Exam Code: 300-910
Exam Name: Implementing DevOps Solutions and Practices using Cisco Platforms (DEVOPS)
Last Update: Jul 14, 2024
Questions: 114

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