Cisco Cisco Certified DevNet Associate 200-901 Questions & Answers

• Question 331:

  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 332:

  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 333:

  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 334:

  Which statement describes the benefit of using functions in programming?

  A. Functions ensure that a developer understands the inner logic contained before using them as part of a script or application.

  B. Functions create the implementation of secret and encrypted algorithms.

  C. Functions allow problems to be split into simpler, smaller groups, and reduce code repetition, which makes the code easier to read.

  D. Functions store mutable values within a script or application.

  Correct Answer: C

• Question 335:

  Which platform is run directly on top of a hypervisor?

  A. bare metal systems

  B. virtual machines

  C. containers

  D. applications

  Correct Answer: B

• Question 336:

  What are two advantages of version control software? (Choose two.)

  A. It supports tracking and comparison of changes in binary format files.

  B. It allows new team members to access the current code and history.

  C. It supports comparisons between revisions of source code files.

  D. It provides wiki collaboration software for documentation.

  E. It allows old versions of packaged applications to be hosted on the Internet.

  Correct Answer: BC

  Version control is a way to keep a track of the changes in the code so that if something goes wrong, we can make comparisons in different code versions and revert to any previous version that we want. It is very much required where multiple developers are continuously working on /changing the source code.

• Question 337:

  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

• Question 338:

  Which two elements are foundational principles of DevOps? (Choose two.)

  A. organizing cross-functional teams over organizational silos

  B. designing applications as microservices

  C. encouraging containers for the deployment of applications

  D. automating over documenting

  E. optimizing the cost of infrastructures

  Correct Answer: AD

• Question 339:

  In DNS, which record specifies an alias that refers to another name that ultimately resolves to an IP address?

  A. CNAME

  B. NS

  C. AAA

  D. SOA

  Correct Answer: A

  Reference: https://ns1.com/resources/dns-types-records-servers-and-queries

• Question 340:

  When a Cisco IOS XE networking device is configured using RESTCONF, what is the default data- encoding method?

  A. JSON

  B. YAML

  C. XML

  D. x-form-encoding

  Correct Answer: C