Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 1:

  Refer to the exhibit.

  

  A security team observes an attack that originates from a Cisco Meraki device. To mitigate the attack, the team requests that the engineering team remove the device from the network. The security team also requests information about the device, such as its name and location. Which tool must the engineering team use to meet the requirements by using tasks?

  A. cURL

  B. Postman

  C. Ansible

  D. Puppet

  Correct Answer: C

• Question 2:

  What is a characteristic of a VLAN?

  A. associated with IP address subnetworks

  B. consist of physically segmented LANs

  C. users access data from different VLANs

  D. associated with MAC address subnetworks

  Correct Answer: D

• Question 3:

  Which response code family is returned when further action must be taken to complete the request?

  A. 2xx

  B. 3xx

  C. 4xx

  D. 5xx

  Correct Answer: B

• Question 4:

  Which network component enables communication between broadcast domains?

  A. router

  B. firewall

  C. switch

  D. load balancer

  Correct Answer: A

• Question 5:

  What type of efficiency is achieved by using model-driven programmability for infrastructure automation?

  A. Apply configuration changes across devices using the same model.

  B. Implement infrastructure components using a single platform.

  C. Collect logging information using a single model across the infrastructure.

  D. Configure the infrastructure using a multi-interface API.

  Correct Answer: A

• Question 6:

  A developer prepares an API to be used by administrators. API requires username and password to be verified for validated access to data, however username-password combination of users must not be sent to the API service itself. Authentication and authorization will be provided over the same mechanism. Which authentication mechanism must be used by the API service?

  A. OAuth Authentication

  B. Digest Access Authentication

  C. Basic Authentication

  D. API Key Authentication

  Correct Answer: A

• Question 7:

  A developer creates a REST API that runs on a load balancer for clients to query information about stocks. The data in the back-end database is updated every 15 minutes, but clients are polling the API every 2 minutes. The developer needs to reduce the load on the database without making changes to the client side. Which constraint must the engineer address?

  A. The load balancer is not configured to use memcached as the primary back end.

  B. Use of Cache-Control headers and max-age validation is not enforced.

  C. Request throttling on the load balancer database is not enabled.

  D. Dynamic IP deny listing, which allows requests every 15 minutes, is not configured.

  Correct Answer: B

• Question 8:

  What are two advantages of the MVC design pattern? (Choose two.)

  A. It represents the visualization of data contained with a model.

  B. It allows filtering of a set of objects using different criteria.

  C. It controls the data flow into a model object and updates a view whenever data changes.

  D. It separates low-level data accessing operations from high-level business services.

  E. It builds a final object through a step-by-step approach.

  Correct Answer: CD

• Question 9:

  A developer needs to create an application with these requirements:

  1.

  decouples from the underlying infrastructure

  2.

  runs application on any cloud or on-premises provider Which deployment type must be used for this application?

  A. bare metal

  B. hyperconverged

  C. container

  D. virtual machine

  Correct Answer: C

• Question 10:

  Package updates from a local server are failing to download. The same updates work when a much slower external repository is used. The server has the configuration:

  1.

  hostname: devbox111012120

  2.

  IP: 192.168.1.51

  3.

  Mask: 255.255.255.0 Why are local updates failing?

  A. The Internet is down at the moment, which causes the local server to not be able to respond.

  B. The Internet connection is too slow.

  C. The server is running out of disk space.

  D. The update utility is trying to use a proxy to access the internal resource.

  Correct Answer: D