Free Share 2021 Cisco 350-901 DEVCOR Exam Questions and Answers

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Developing Applications using Cisco Core Platforms and APIs v1.0 (DEVCOR 350-901) exam is a 120-minute exam associated with the Cisco Certified DevNet Professional certification. This exam tests a candidate’s knowledge of software development and design including using APIs, Cisco platforms, application deployment and security, and infrastructure and automation.

FreeTestShare Cisco 350-901 DEVCOR Exam Questions and Answers are based on actual exam questions and will help you get the necessary subject matter knowledge to pass the Developing Applications using Cisco Core Platforms and APIs exam and further your career. Take a free 350-901 practice exam right now to see how prepared you are!

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1. Refer to the exhibit.

An engineer is configuring Ansible to run playbooks against Cisco IOS XE Software.

What should be configured in ansible.cfg as the connection type?

network_cli

ssh

shell

command

2. A developer has completed the implementation of a REST API, but when it is executed, it returns a 401 error message.

What must be done on the API to resolve the issue?

Access permission to the resource must be granted, before the request.

Configure new valid credentials.

The requested API endpoint does not exist, and the request URL must be changed.

Additional permission must be granted before the request can submitted.

3. DRAG DROP

Refer to the exhibit.

Drag and drop the code snippets from the left onto the item numbers on the right that match the missing sections in the exhibit to complete the script to implement control flow.

4. DRAG DROP

Drag and drop the steps from the left into the order on the right to configure and install a container on a Cisco Catalyst 9000 Series Switch.

5. DRAG DROP

Refer to the exhibit above and click on the resource tabs in the top left corner to view resources to help with this question. Python code that uses the UCS Python SDK is instantiating a service profile named ''devcore-server-01'' from service profile template ''device-template'' , then associating the service profile instance to blade 3 in chassis 7.

Drag and drop the code snippets from the left onto the item numbers on the right that match the missing sections in the Python exhibit.

6. DRAG DROP

Drag and drop the git commands from the left into the correct order on the right to create a feature branch from the master and then incorporate that feature branch into the master.

7. DRAG DROP

Drag and Drop the application requirement on the left onto the database type that should be selected for the requirement on the right.

8. Refer to the exhibit.

An engineer needs to change the IP address via RESTCOMF on interface GigabitEthernet2. An error message is received when the script is run.

Which amendment to the code will result in a successful RESTCONF action?

Change POST to PATC

Issue a DELETE before POS

Issue a DELETE before PATCH

Change POST to GET

9. Refer to the exhibit.

The Ansible playbook is using the netconf_module to configure an interface using a YANG model.

As part of this workflow, which YANG models augment the interface?

ietf-interfaces and ietf-ip

iana-if-type and ietf-interfaces

ietf-ip and openconfig-interface

ietf-ip and iana-if-type

10. The UCS Python SDK includes modules for Service Profile template creation.

Which two UCS Service Profile template types are supported? (Choose two.)

initial-template

updating-template

abstract-template

attached-template

base-template

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11. DRAG DROP

Drag and drop the steps on the left into the order on the right for an end-user to access an OAuth2 protected resource using the Authorization Code Grant1 flow.

12. DRAG DROP

Drag and drop the characteristics from the left onto the correct data processing techniques on the right, in the context of GDPR.

13. A developer has just completed the configuration of an API that connects sensitive internal systems. Based on company policies, the security of the data is a high priority.

Which approach must be taken to secure API keys and passwords?

Embed them directly in the code.

Store them in a hidden file.

Store them inside the source tree of the application.

Change them periodically.

14. An organization manages a large cloud-deployed application that employs a microservices architecture. No notable issues occur with downtime because the services of this application are redundantly deployed over three or more data center regions. However, several times a week reports are received about application slowness. The container orchestration logs show faults in a variety of containers that cause them to fail and then spin up brand new.

Which action must be taken to improve the resiliency design of the application while maintaining current scale?

Update the base image of the containers.

Test the execution of the application with another cloud services platform.

Increase the number of containers running per service.

Add consistent “try/catch(exception)” clauses to the code.

15. A developer plans to create a new bugfix branch to fix a bug that was found on the release branch.

Which command completes the task?

git checkout -b RELEASE BUGFIX

git checkout -t BUGF1X RELEASE

git checkout -b BUG FIX RELEASE

git checkout -t RELEASE BUGFIX

16. DRAG DROP

A Python application is being written to run inside a Cisco IOS XE device to assist with gathering telemetry data.

Drag and drop the elements of the stack from the left onto the functions on the right to collect and display the telemetry streaming data.

17. An organization manages a large cloud-deployed application that employs a microservices architecture across multiple data centers. Reports have received about application slowness. The container orchestration logs show that faults have been raised in a variety of containers that caused them to fail and then spin up brand new instances.

Which two actions can improve the design of the application to identify the faults? (Choose two.)

Automatically pull out the container that fails the most over a time period.

Implement a tagging methodology that follows the application execution from service to service.

Add logging on exception and provide immediate notification.

Do a write to the datastore every time there is an application failure.

Implement an SNMP logging system with alerts in case a network link is slow.

18. DRAG DROP

Drag and drop the REST API authentication method from the left to the description on the right

19. What is a benefit of continuous testing?

decreases the frequency of code check-ins

removes the requirement for test environments

enables parallel testing

increases the number of bugs found in production

20. A user is receiving a 429 Too Many Requests error.

Which scheme is the server employing that causes this error?

rate limiting

time outs

caching

redirection

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21. Why is end-to-end encryption deployed when exposing sensitive data through APIs?

Traffic is encrypted and decrypted at every hop in the network path.

Data transfers are untraceable from source to destination.

Data cannot be read or modified other than by the true source and destination.

Server-side encryption enables the destination to control data protection.

22. Refer to the exhibit.

An application uses an API to periodically sync a large data set.

Based on the HTTP message sequence provided, which statements are true about the caching behavior seen in the scenario? (Choose two.)

The full dataset was transmitted to the client twice.

The dataset changed sometime between message #4 and #5.

A partial dataset was transmitted to the client in message #4.

The dataset did not change during the scenario.

Messages #3 and #5 are equivalent.

23. Which two techniques protect against injection attacks? (Choose two.)

input validation

trim whitespace

limit text areas to 255 characters

string escaping of user free text and data entry

only use dropdown, checkbox, and radio button fields

24. On a Cisco Catalyst 9300 Series Switch, the guest shell is being used to create a service within a container.

Which change is needed to allow the service to have external access?

Apply ip nat overload on VirtualPortGroup0.

Apply ip nat inside on Interface VirtualPortGroup0.

Apply ip nat outside on Interface VirtualPortGroup0.

Apply ip nat inside on Interface GigabitEthernet1.

25. DRAG DROP

Refer to the exhibit above and click on the resource tabs in the top left corner to view resources to help with this question.

Drag and drop the correct code snippets from the left onto the item numbers on the right that match the missing sections in the exhibit to complete the cURL script that will use RESTCONF to update an interface on a CISCO IOS

XE device.

26. Refer to the exhibit.

Which RESTCONF verb changes the GigabitEthernet2 interface from 192.168.100.1/24 to 10.10.10.1/24

POST

PATCH

GET

HEAD

27. Refer to the exhibit.

An application's REST API GET call is tested to the inventory database.

Which missing code must be included to limit

the number of values that are returned from the query to 20?

?mventory=20

limit=?2Q

inventory=limit?20

inventory? Iimit20

28. Refer to the exhibit.

Which two functions are performed by the load balancer when it handles traffic originating from the Internet destined to an application hosted on the file server farm? (Choose two.)

Terminate the TLS over the UDP connection from the router and originate an HTTPS connection to the selected server.

Terminate the TLS over the UDP connection from the router and originate an HTTP connection to the selected server.

Terminate the TLS over the TCP connection from the router and originate an HTTP connection to the selected server.

Terminate the TLS over the TCP connection from the router and originate an HTTPS connection to the selected server.

Terminate the TLS over the SCTP connection from the router and originate an HTTPS connection to the selected server.

29. DRAG DROP

Drag and drop the code from the bottom onto the box where the code is missing in the diagram to show how data is processed in Webex Teams. Not all options are used.

30. DRAG DROP

Refer to the exhibit.

Drag and drop the code snippets from the left onto the item numbers on the right that match the missing sections in the curl exhibit to complete the cURL request to FirePower Device Manager API to create objects. Not all code snippets are used.

Page 4 of 5

31. Which two principles are included in the codebase tenet of the 12-factor app methodology? (Choose two.)

An application is always tracked in a version control system.

There are multiple codebases per application.

The codebase is the same across all deploys.

There can be a many-to-one correlation between codebase and application.

It is only possible to have one application deployment per codebase.

32. A network operations team is using the cloud to automate some of their managed customer and branch locations. They require that all of their tooling be ephemeral by design and that the entire automation environment can be recreated without manual commands.

Automation code and configuration state will be stored in git for change control and versioning. The engineering high-level plan is to use VMs in a cloud- provider environment then configure open source tooling onto these VMs to poll, test, and configure the remote devices, as well as deploy the tooling itself.

Which configuration management and/or automation tooling is needed for this solution?

Ansible

Ansible and Terraform

NSO

Terraform

Ansible and NSO

33. Which two types of storage are supported for app hosting on a Cisco Catalyst 9000 Series Switch? (Choose two.)

external USB storage

internal SSD

CD-ROM

SD-card

bootflash

34. What is the function of dependency management?

separating code into modules that execute independently

utilizing a single programming language/framework for each code project

automating the identification and resolution of code dependencies

managing and enforcing unique software version names or numbers

35. Refer to the exhibit.

What is the missing step in deploying a Docker container to lOx?

Pull/push the image to the Docker registry,

Build the package.yam! file.

Build the package.cert file to sign the app ,

36. Refer to the exhibit.

A kubeconfig file to manage access to clusters is provided.

How many clusters are defined and which of them are accessed using username/password authentication versus certificate?

two clusters; scratch

three clusters; scratch

three clusters; development

two clusters; development

37. How should a web application be designed to work on a platform where up to 1000 requests per second can be served?

Use algorithms like random early detection to deny excessive requests.

Set a per-user limit (for example, 5 requests/minute/user) and deny the requests from the users who have reached the limit.

Only 1000 user connections are allowed; further connections are denied so that all connected users can be served.

All requests are saved and processed one by one so that all users can be served eventually.

38. Refer to the exhibit.

Which code snippet completes this code to handle API rate-limit?

response.status_code !*= 408

response.status != 408

response.status_code 1= 429

response.status_code == 429

39. A developer needs to configure an environment to orchestrate and configure.

Which two tools should be used for each task? (Choose two.)

Puppet for orchestration

Terraform for orchestration

Terraform for configuration

Ansible for orchestration

Ansible for configuration

40. What is submitted when an SSL certificate is requested?

PEM

CRT

DER

CSR

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41. Refer to the exhibits.

An interface named “GigabitEthernet2” has been configured on a Cisco IOS XE device.

Using RESTCONF APIs as defined by the [email protected] model, which two combinations of “rest_operation” and “payload” must be added to the Python script to set the “description” to “Configured by RESTCONF”? (Choose two.)

Option A

Option B

Option C

Option D

Option E

42. CORRECT TEXT

A local Docker image has an image ID of 386231131. Fill in the blanks to complete the command in order to tag the image into the "cisco" repository with "version1 0’".

Free Share 2021 Cisco 350-901 DEVCOR Exam Questions and Answers

Free Share 2021 Cisco 350-901 DEVCOR Exam Questions and Answers

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