350-901 Exam - Developing Applications using Cisco Core Platforms & APIs

NEW QUESTION 1
A client is written that uses a REST API to interact with a server. Using HTTPS as the transport, an HTTP request is sent and received an HTTP response. The response contains the HTTP response status code: 503 Service Unavailable.
Which action is the appropriate response?

• A. Add an Authorization header that supplies appropriate credentials and sends the updated request.
• B. Resend the request using HTTP as the transport instead of HTTPS.
• C. Add an Accept header that indicates the content types that the client understands and send the updated request.
• D. Look for a Retry-After header in the response and resend the request after the amount of time indicated.

Answer: A

NEW QUESTION 2

Refer to the exhibit. Which line of code must be added to this code snippet to allow an application to pull the next set of paginated items?

• A. requests.get(url, links=[‘next’][‘url’])
• B. requests.get(url, headers=links[‘next’][‘url’])
• C. requests.get(res.links[‘next’][‘url’], headers=headers)
• D. requests.get(res.headers.get(‘Link”)[‘next’][‘url’], headers=headers)

Answer: C

NEW QUESTION 3
A container running a Python script is failing when it reaches the integration testing phase of the CI/CD process. The code has been reviewed thoroughly and the build process works on this container and all other containers pass unit and integration testing.
What should be verified to resolve the issue?

• A. that the correct port is exposed in the Dockerfile
• B. that the necessary modules and packages are installed on build
• C. that the script is running from the night directory
• D. that the Python version of the container image is correct

Answer: B

NEW QUESTION 4
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?

• A. Access permission to the resource must be granted, before the request.
• B. Configure new valid credentials.
• C. The requested API endpoint does not exist, and the request URL must be changed.
• D. Additional permission must be granted before the request can submitted.

Answer: D

NEW QUESTION 5
Which two data encoding techniques are supported by gRPC? (Choose two.)

• A. XML
• B. JSON
• C. ASCII
• D. ProtoBuf
• E. YAML

Answer: BE

NEW QUESTION 6

Refer to the exhibit. Many faults have occurred in the ACI environment and a sample of them needs to be examined. Which API call retrieves faults 30 through 45?

• A. GET https://apic-ip-address/api/class/faultInfo.json?order-by=faultinst.severity|desc&page=1&page-size=15
• B. GET https://apic-ip-address/api/class/faultInfo.json?order-by=faultinst.severity|desc&page=2&page-size=15
• C. GET https://apic-ip-address/api/class/faultInfo.json?order-by=faultinst.severity|desc&page=30
• D. GET https://apic-ip-address/api/class/faultInfo.json?order-by=faultinst.severity|desc&page=2&page-size=30

Answer: D

NEW QUESTION 7

Refer to the exhibit. Which configuration of method and parameter retrieves the health of a laptop connected to the network from Cisco DNA Center?

• A. PUT; network-health;
• B. GET; client-health;
• C. GET; network-device;
• D. POST; network-device;

Answer: C

NEW QUESTION 8

Refer to the exhibit. This script uses ciscoyang to configure two VRF instances on a Cisco IOS-XR device using the Yang NETCONF type. Which two words are required to complete the script? (Choose two.)

• A. ensure
• B. commit
• C. false
• D. replace
• E. none

Answer: CD

NEW QUESTION 9
Which two principles are included in the codebase tenet of the 12-factor app methodology? (Choose two.)

• A. An application is always tracked in a version control system.
• B. There are multiple codebases per application.
• C. The codebase is the same across all deploys.
• D. There can be a many-to-one correlation between codebase and application.
• E. It is only possible to have one application deployment per codebase.

Answer: AE

NEW QUESTION 10

Refer to the exhibit. What is the output of this IOS-XE configuration program?

• A. interface operational status in IPv6 addresses
• B. interface administrative status in IPv4 addresses
• C. interface operational status in IPv4 addresses
• D. interface administrative status in IPv6 addresses

Answer: D

NEW QUESTION 11
An application is hosted on Google Kubernetes Engine. A new JavaScript module is created to work with the existing application. Which task is mandatory to make the code ready to deploy?

• A. Create a Dockerfile for the code base.
• B. Rewrite the code in Python.
• C. Build a wrapper for the code to “containerize” it.
• D. Rebase the code from the upstream git repo.

Answer: D

NEW QUESTION 12
There is a requirement to securely store unique usernames and passwords. Given a valid username, it is also required to validate that the password provided is correct. Which action accomplishes this task?

• A. Encrypt the username, hash the password, and store these values.
• B. Hash the username, hash the password, and store these values.
• C. Encrypt the username, encrypt the password, and store these values.
• D. Hash the username, encrypt the password, and store these values.

Answer: A

NEW QUESTION 13
DRAG DROP

Refer to the exhibit. Drag and drop the steps from the left into the correct order of operation on the right for a successful OAuth2 three-legged authorization code grant flow.
Select and Place:

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 14
Click on the GET Resource button above to view resources that will help with this question.
An engineer is managing a DC with 6000 Cisco UCS servers installed and running. The engineer has been asked to identify all resources where the model is in the UCSB family and the available memory is less than or equal to 5 GB.
Which REST API call accomplishes this task?

• A. GET/api/v1/compute/RackUnits?$select=Vendor,Model,Serial&$filter=not(Model eq ‘UCSC’) and AvailableMemory le 5000
• B. GET/api/v1/compute/RackUnits?$select=Vendor,Model,Serial&$filter=Model eq ‘UCSB’ and AvailableMemory lt 5000
• C. GET/api/v1/compute/RackUnits?$select=Vendor,Model,Serial&$filter=contains(Model, UCSB’) and AvailableMemory lt 5000
• D. GET/api/v1/compute/RackUnits?$select=Vendor,Model,Serial&$filter=contains(Model, UCSB’) and AvailableMemory le 5000

Answer: D

NEW QUESTION 15
A cloud native project is being worked on in which all source code and dependencies are written in Python, Ruby, and/or JavaScnpt. A change in code triggers a notification to the CI/CD tool to run the CI/CD pipeline.
Which step should be omitted from the pipeline?

• A. Deploy the code to one or more environments, such as staging and/or production.
• B. Build one of more containers that package up code and all its dependencies.
• C. Compile code.
• D. Run automated tests to validate the correctness.

Answer: A

NEW QUESTION 16
An application uses OAuth to get access to several API resources on behalf of an end user. What are two valid parameters to send to the authorization server as part of the first step of an authorization code grant flow? (Choose two.)

• A. URI to which the authorization server will send the user-agent back when access is granted or denied
• B. list of the API resources that the application is requesting to access
• C. secret that was generated by the authorization server when the application registered as an OAuth integration
• D. list of scopes that correspond to the API resources to which the application is requesting to access
• E. name of the application under which the application registered as an OAuth integration

Answer: AC

NEW QUESTION 17
Which HTTP status code indicates that a client application is experiencing intentional rate limiting by the server?

• A. 202
• B. 401
• C. 429
• D. 503

Answer: C

NEW QUESTION 18
DRAG DROP
Drag and drop the characteristics from the left onto the correct data processing techniques on the right, in the context of GDPR.
Select and Place:

• A. Mastered
• B. Not Mastered

Answer: A

Explanation:

NEW QUESTION 19
Which type of file is created from issued intermediate, root, and primary certificates for SSL installation on a server?

• A. DER
• B. CSR
• C. PEM
• D. CRT

Answer: C

NEW QUESTION 20
Which database type should be used to store data received from model- driven telemetry?

• A. BigQuery database
• B. Time series database
• C. NoSQL database
• D. PostgreSQL database

Answer: B

NEW QUESTION 21
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?

• A. Apply ip nat overload on VirtualPortGroup0.
• B. Apply ip nat inside on Interface VirtualPortGroup0.
• C. Apply ip nat outside on Interface VirtualPortGroup0.
• D. Apply ip nat inside on Interface GigabitEthernet1.

Answer: B

NEW QUESTION 22
Which transport protocol is used by gNMI?

• A. HTTP/2
• B. HTTP 1.1
• C. SSH
• D. MQTT

Answer: A

NEW QUESTION 23
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