Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 311:

  Refer to the exhibit.

  

  Which two statements describe the configuration of the switch after the Ansible script is run? (Choose two.)

  A. Traffic from ports 0/2 to 0/5 can flow on port 0/1 due to the trunk.

  B. GigabitEthernet0/1 is left unconfigured.

  C. GigabitEthernet0/2 and GigabitEthernet0/3 are access ports for VLAN 6.

  D. Traffic can flow between ports 0/2 to 0/5 due to the trunk on port 0/1.

  E. Traffic on ports 0/2 and 0/3 is connected to port 0/6.

  Correct Answer: AC

• Question 312:

  Which principle is a value from the manifesto for Agile software development?

  A. processes and tools over teams and interactions

  B. detailed documentation over working software

  C. adhering to a plan over responding to requirements

  D. customer collaboration over contract negotiation

  Correct Answer: D

  Reference: https://www.cisco.com/c/dam/global/en_hk/solutions/collaboration/files/ agile_product_development.pdf

• Question 313:

  Which statement about authenticating a RESTCONF API session with a router that runs Cisco IOS XE Software is true?

  A. No authentication is required.

  B. OAuth must be used.

  C. A token must be retrieved and the associated string must be embedded in the X-Auth-Token header.

  D. Basic authentication must be used.

  Correct Answer: D

  https://www.cisco.com/c/en/us/td/docs/routers/csr1000/software/restapi/restapi/RESTAPIclient.html

• Question 314:

  Which way should be used to safely store the API keys?

  A. in an environment variable unique to the system database

  B. encrypted in a configuration file that is separate from the code

  C. plain text in the code as a constant

  D. encrypted in the code in a function

  Correct Answer: A

• Question 315:

  Which Cisco DevNet resource allows access to products in a development lab to explore, learn, and build applications that use Cisco APIs?

  A. DevNet Code Exchange

  B. DevNet Sandbox

  C. DevNet Communities

  D. DevNet Automation Exchange

  Correct Answer: B

  Reference: https://developer.cisco.com/site/sandbox/

• Question 316:

  Package updates from a local server fail to download. However, the same updates work when a much slower external repository is used. Why are local updates failing?

  A. The server is running out of disk space.

  B. The Internet connection is too slow.

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

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

  Correct Answer: D

• Question 317:

  Which line is an example of the start of a chunk from a unified diff?

  A. @@ -20191007T1200 +88,90 @@

  B. @@ -88,10 +88,6 @@

  C. @@ -90,88 +20191008T1349 @@

  D. @@ -20191007T1200 +20191008T1349 @@

  Correct Answer: B

  Reference: https://unix.stackexchange.com/questions/252927/what-do-the-numbers-in-the-line-mean-in-output-of-diff

• Question 318:

  What is the benefit of edge computing?

  A. It reduces network latency by moving processing closer to the data source.

  B. It reduces data velocity from devices or other data sources.

  C. It simplifies security as devices and processing are brought closer together.

  D. It removes the need for centralized data processing.

  Correct Answer: A

  Reference: https://blogs.cisco.com/networking/time-to-get-serious-about-edge-computing

• Question 319:

  Refer to the exhibit.

  

  An administrator attempts to perform a GET using the Cisco IOS XE RESTCONF API to return the hostname of a device. The sequence diagram illustrates the HTTP messages observed. Which change to the API request resolves the issue?

  A. Remove the -H `Accept: application/yang-data+json' HTTP header because it is not required.

  B. Add -u cisco:cisco' in the end of the cURL command

  C. Change the request method from -X "GET" to -X "POST"

  D. Add Content-Type HTTP header with `application/yang-data+json' using -H `Content-Type: application/yang-data+json'

  Correct Answer: B

• Question 320:

  Refer to the exhibit.

  

  Which two statements about the network diagram are true? (Choose two.)

  A. The subnet address of PC-B has 18 bits dedicated to the network portion.

  B. One of the routers has two connected serial interfaces.

  C. R1 and R3 are in the same subnet.

  D. PC-A and PC-B are in the same subnet.

  E. The subnet of PC-C can contain 256 hosts.

  Correct Answer: BD

  D is the closest answer than others. hosts connected to the same switch DOES NOT mean that they are on the same subnet. Different switch ports can be on different subnets (This is what VLANs are for, breaking down broadcast domains in a switch) as others already mentioned, a /24 network can only have 254 host addresses