Cisco Cisco Certified DevNet Professional 350-901 Questions & Answers

• Question 131:

  

  Refer to the exhibit. A Python API server has been deployed. Based on metrics and logs, increased load has been noticed. Which two approaches must be taken to optimize API usage on the server? (Choose two.)

  A. Include the ETag header in the API response

  B. Include the Last-Modified header in the API response.

  C. Change the query to be more efficient.

  D. Include the Content-Type header in the API response.

  E. Leverage middleware caching and respond with HTTP code 204 in the API response.

  Correct Answer: AE

• Question 132:

  What is a risk to data privacy during the storage and transmission of data?

  A. The risk of exposure is increased when data is shared between applications.

  B. The transfer of unencrypted data between storage devices increases the risk of exposure.

  C. Data breaches cause ongoing exposure of personal information.

  D. The transfer of unencrypted personally identifiable financial information from a storage device increases the risk of a data broach.

  Correct Answer: B

• Question 133:

  Which configuration stop must be performed on a Cisco IOS XE device to present collected data in Cisco DNA Center?

  A. Create an SNMPv3 user account.

  B. Apply a telemetry profile.

  C. Synchronize the device and the data collector.

  D. Enable Cisco NetFlow collection.

  Correct Answer: B

• Question 134:

  Refer to the exhibit.

  

  A developer must review an intern's code for a script they wrote to automate backups to the storage server. The script must connect to the network device and copy the running- config to the server.

  When considering maintainability, which two changes must be made to the code? (Choose two.)

  A. Rename the class to "ArchiveManager".

  B. The code is incorrect because the class does not have an__init__() method.

  C. The command sent to the network device is incorrect.

  D. Refactor the code placing the "for" loop steps inside a single nc method.

  E. The intern must use IP addresses because DNS is unreliable.

  Correct Answer: CD

• Question 135:

  Refer to the exhibit.

  

  The virtual next-generation firewalls running in the public cloud must be scaled out to meet the throughput requirements of the application layer. Which component is deployed to location A in the diagram?

  A. frontend caching server

  B. forward proxy

  C. backend database

  D. internal load balancer

  Correct Answer: D

• Question 136:

  An application must be able to print the values of the variables in specific modules. Different message levels will be used for production and for development. Proof of access and activity must be documented. What must be included in the implementation to support these observability requirements?

  A. print

  B. metrics

  C. logging

  D. streaming

  Correct Answer: C

• Question 137:

  A development team is looking for a tool to automate configurations across the infrastructure. The tool must have these characteristics:

  written in Python define playbooks (or intent stateless imperative

  Which tool meets these requirements?

  A. Puppet

  B. Netmiko

  C. Ansible

  D. NCM

  Correct Answer: C

• Question 138:

  Refer to the exhibit.

  

  A network administrator copies SSL certificates to a Cisco NX-OS switch. An Ansible playbook is created to enable NX-API, which will use the new certificate. In the group_vars/vars.yml file, which code snippet must be used to define the properly formatted variables?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: B

• Question 139:

  Refer to the exhibit.

  

  An application has been created to serve a whole enterprise. Based on use and department requirements, changes are requested on a quarterly basis. When evaluating the application design, which two actions improve code maintainability?

  A. Replace the requests library with the http client library in the code.

  B. Place all import statements on a single line at the top of the code.

  C. Cache responses to API calls for later reuse on other code.

  D. Parameterize similar code blocks inside functions and reuse within the code.

  E. Add comments in appropriate locations to aid in understanding the code.

  Correct Answer: DE

• Question 140:

  Refer to the exhibit.

  

  A developer runs the docker service scale command to increase the number of replicas for the cisco_devnet service. The swarm cluster is using a private IP address subnet. The service has these design requirements:

  It must be hosted behind a virtual IP address that is reachable from the Internet. For security reasons, the Docker swarm cluster subnet must not be reachable from the Internet.

  Which design approach is used to fulfill the requirements?

  A. Create an overlay network by using a globally roulable subnet and enable a routing mesh within the swarm cluster.

  B. Create a bridge network by using a globally routable subnet and enable a routing mesh within the swarm cluster.

  C. Configure an external load balancer to route requests to the swarm service by using VPN.

  D. Configure an external load balancer to route requests to the swarm service by using NAT.

  Correct Answer: A