Cisco Cisco Certified DevNet Professional 350-901 Questions & Answers

• Question 281:

  Refer to the exhibit.

  

  An engineer writes a script to retrieve data from a REST API and must build support for cases where the response that contains data from the server may take a longer time than normal. Which code must be added to the snippet where the code is missing to catch such a timeout?

  A. request.exeception.ConnectTimeout

  B. request.executions.DataTimeout

  C. request.exeception.HTTPError

  D. request.exception.ReadTimeout

  Correct Answer: A

• Question 282:

  Which two encryption principles should be applied to secure APIs? (Choose two.)

  A. Use temporary files as part of the encryption and decryption process

  B. Transmit authorization information by using digitally signed payloads

  C. Use encrypted connections to protect data n transit

  D. Reuse source code that contain existing UUIDs

  E. Embed keys in code to simplify the decryption process

  Correct Answer: BC

• Question 283:

  What is a benefit of continuous testing?

  A. decreases the frequency of code check-ins

  B. removes the requirement for test environments

  C. enables parallel testing

  D. increases the number of bugs found in production

  Correct Answer: C

• Question 284:

  Which two countermeasures help reduce the risk of playback attacks? (Choose two.)

  A. Store data in a NoSQL database.

  B. Implement message authentication (HMAC).

  C. Enable end-to-end encryption.

  D. Remove stack traces from errors.

  E. Use short-lived access tokens.

  Correct Answer: BE

• Question 285:

  A developer is deploying an application to automate the configuration and management of Osco network files and routers The application must use REST API interface lo achieve programmability. The security team mandates that the network

  must be protected against DDoS attacks.

  What mitigates the attacks without impacting genuine requests?

  A. API rate limiting at the application layer

  B. IP address filtering at the application layer

  C. traffic routing on the network perimeter D. firewall on the network perimeter

  Correct Answer: D

• Question 286:

  Which RFC5988 (Web Linking) relation type is used in the Link header to control pagination in APIs?

  A. rel="index"

  B. rel="page"

  C. rel="next"

  D. rel="section"

  Correct Answer: C

• Question 287:

  Which tool is used to deploy an IOx application to a group of lOx devices at one time?

  A. ioxclient

  B. lOx local manager

  C. Fog Network Director

  D. Kubernetes

  Correct Answer: C

• Question 288:

  

  Refer to the exhibit. Which command resolves the merge conflict by removing the previous commit from the commit history?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: B

• Question 289:

  Refer to the exhibit.

  

  Which key value pair from the ios_ntp Ansible module creates an NTP server peer?

  A. state: present

  B. state: True

  C. config: present

  D. config: True

  Correct Answer: A

  Explanation: ios_ntp : Manages core NTP configuration state : Manage the state of the resource Choices : present | absent Example: # Set new NTP server and source interface

  -ios_ntp: server: 10.0.255.10 source_int: Loopback0 logging: false state: present

  https://docs.ansible.com/ansible/latest/modules/ios_ntp_module.html

• Question 290:

  Refer to the exhibit.

  

  Which cURL request is included in the presented XML as the body of the response?

  

  A. B. C. D.

  Correct Answer: D