Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 41:

  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

• Question 42:

  Which two types of NAT are used in a network? (Choose two.)

  A. routed NAT

  B. static NAT

  C. multicast NAT

  D. normal NAT

  E. dynamic NAT

  Correct Answer: BE

  Reference: https://www.dummies.com/programming/networking/cisco/types-of-network-address-translation/

• Question 43:

  Refer to the exhibit.

  

  What is represented in this YANG module?

  A. interface management

  B. BGP

  C. OpenFlow

  D. topology

  Correct Answer: A

  Reference: https://github.com/CiscoDevNet/dnav3-code/blob/master/intro-mdp/yang/models/Cisco-IOS-XE-interfaces-oper.yang

• Question 44:

  A developer is reviewing a code that was written by a colleague. It runs fine, but there are many lines of code to do a seemingly simple task repeatedly. Which action organizes the code?

  A. Refactor the code by removing any unnecessary tests.

  B. Reverse engineer and rewrite the code logic.

  C. Using functions, rewrite any pieces of code that are repeated.

  D. Modify the code to use loops.

  Correct Answer: C

  Functions are used to avoid repetitions

• Question 45:

  Which CI/CD tool is an automation tool used to build, test, and deploy software?

  A. Git

  B. Gradle

  C. Nagios

  D. Jenkins

  Correct Answer: D

  Reference: https://www.infoworld.com/article/3271126/what-is-cicd-continuous-integration-and-continuous-delivery-explained.html

• Question 46:

  Which model-driven programmability protocol does Cisco IOS XE Software support?

  A. gNMI

  B. SOAP

  C. SSH

  D. CORBA

  Correct Answer: A

  Reference: https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/prog/configuration/1610/ b_1610_programmability_cg/gnmi_protocol.html

• Question 47:

  Refer to the exhibit.

  

  What is the function of the Python script?

  A. Loop through the returned list of network devices and, for each device, print the device name and management IP address.

  B. Count and print the total number of available devices.

  C. For each device that is returned, display the device type and associated management IP address.

  D. Iterate over a list of network devices and write all device names and management IP addresses to an output file.

  Correct Answer: A

• Question 48:

  What are two benefits of managing network configuration via APIs? (Choose two.)

  A. more security due to locking out manual device configuration

  B. configuration on devices becomes less complex

  C. eliminates the need of legacy management protocols like SNMP

  D. reduction in network changes performed manually

  E. increased scalability and consistency of network changes

  Correct Answer: DE

  API is all about automation and escalability

• Question 49:

  Refer to the exhibit.

  

  The output of a unified diff when comparing two versions of a Python script is shown. Which two "single_request_timeout()" functions are defined in fish.py and cat.py? (Choose two.)

  

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  E. Option E

  Correct Answer: BC

  Each changed line is prepended with either a "+" or a "-" symbol. A line that is prepended with a "-" sign comes from fish.py, while a line with a "+" sign comes from cat.py. In most cases, Git picks fish.py and cat.py in such a way that you can

  think of fish.py/- as "old" content and cat.py/+ as "new" content.

  160 - @single_request_timeout.setter

  161 - def single_request_timeout(self,value):

  162 - "'''The timeout (seconds) for a single HTTP REST API request."

  163 - check_type(value, int, optional=True)

  "-" value = this line was deleted from fish.py 164 - assert value is None or value > 0

  "+" value = this line was added - 165 - if value is not None and value <= 0:

  "+" value = this line was added - 166 - raise ValueError("single_request_timeout must be positive integer") self._single_request_timeout = value 167 - self._ single_request_timeout = value

• Question 50:

  Refer to the exhibit.

  

  Which JSON is equivalent to the XML-encoded data?

  

  A. Option A

  B. Option B

  C. Option C

  D. Option D

  Correct Answer: C

  Reference: https://www.guru99.com/json-vs-xml-difference.html