Cisco Devnet 200-901 Mock-up Test – 3 || July2021

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1. What is the first development task in test-driven development?

A. Write code that implements a desired function.

B. Write a failing test case for a desired function.

C. Write a passing test case for existing code.

D. Reverse engineer the code for a desired function

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

A. adhering to a plan over responding to requirements

B. detailed documentation over working software

C. processes and tools over teams and inter actions

D. customer collaboration over contract negotiation

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

A. configuration on devices becomes less complex

B. more security due to locking out manual device configuration

C. increased scalability and consistency of network changes

D. eliminates the need of legacy management protocols like SNMP

E. reduction in network changes performed manually

4. What are two advantages of the Model-view-controller software design pattern? (Choose two.)

A. simplifies network automation

B. allows for multiple views of the same model

C. makes code easier to deploy using Cl/CD pipelines

D. reduces need for error handling

E. separates responsibilities of the code, which makes future modifications easier

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

A. CORBA

B. SSH

C. gNMI

D. SOAP

6. How is a branch called “my-bug-fix” started to develop a fix needed in a product?

A. git branch -b my-bug-fix

B. git checkout -b my-bug-fix

C. git checkout my-bug-fix

D. git branch my-bug-fix

7. Which platform has an API that be used to obtain a list of vulnerable software on user devices?

A. Cisco Umbrella

B. Cisco Firepower

C. Cisco Identity Services Engine

D. Cisco Advanced Malware Protection

8. A company has written a script that creates a log bundle from the Cisco DNA Center every day. Thescript runs without error and the bundles are produced. However, when the script is run during business
hours, report poor voice quality of phones calls. What explains this behavior?

A. The application is running in the Voice VLAN and causes delays and jitter in the subnet.

B. The speed and duplex settings in Cisco DNA Center are sot incorrectly, which causes the transfer to be too slow.

C. The script is written in a low-level programming language where there is no memory safety. This causes a buffer overflow and disruption on the network.

D. Generating the logs causes the CPU on the network controller to spike, which causes delays m forwarding the voice IP packets.

9. What is the benefit of edge computing?

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

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

C. It removes the need for centralized data processing.

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

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

A. AAA

B. SOA

C. NS

D. CNAME

11. Which two statements describe the advantages of using a version control system? (Choose two.)

A. It allows for branching and merging so that different tasks are worked on in isolation before they are merged into a feature or master branch.

B. It allows multiple engineers to work against the same code and configuration files and manage differences and conflicts.

C. It provides tooling to automate application builds and infrastructure provisioning.

D. It allows developers to write effective unit tests.

E. It provides a system to track User Stories and allocate to backlogs.

12. Which statement describes the benefit of using functions in programming?

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

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

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

D. Functions store mutable values within a script 01 application.

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

C. Reverse engineer and rewrite the code logic

D. Modify the code to use loops

14. On which network plane is routing protocol traffic handled?

A. data plane

B. management plane

C. authentication plane

D. control plane

15. What are two roles of an artifact repository in a CI/CD pipeline? (Choose two.)

A. is required for CI/CD pipelines executed on a public cloud infrastructure

B. is required for managing open source software

C. stores files needed and generated during the build process

D. allows for comparing and merging changes in the source code

E. provides traceability, search, and management of binary files

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

A. Nagios

B. Gradle

C. Jenkins

D. Git

17. Before which process is code review performed when version control is used?

A. committing code

B. branching code

C. merge of code

D. checkout of code

18. What are two advantages of YANG-based approaches for infrastructure automation? (Choose two.)

A. directly maps to JavaScript

B. multi-platform vendor abstraction

C. designed to reflect networking concepts

D. compiles to executables that run on network devices

E. command line driven interface

19. What should a CI/CD pipeline aim to achieve?

A. to allow manual testing before deployment

B. to require minimal manual interaction

C. to support new deployments on a fixed monthly schedule

D. to provide a documented process for feedback

20. Which two statements about JSON and XML are true? (Choose two.)

A. JSON objects are collection of key value pair.

B. The syntax of JSON contains tags, elements, and attributes.

C. JSON arrays are an unordered set of key value pairs.

D. The syntax of XML contains tags, elements, and attributes.

E. XML objects are collections of key-value pairs.

21. Which API is used to obtain data voicemail ports?

A. Finesse gadgets

B. Cisco Unified Communications manager

C. Webex devices

D. Webex teams

22. Which two NETCONF operations cover the RESTCONF GET operation? (Choose two.)

23. Which type of HTTP method is used by the Meraki nad webex teams APIs to send webhook notifications?

A. HTTP GET

B. HTTP PUT

C. HTTP HEAD

D. HTTP POST

24. What is an advantage of a version control system?

A. forces the practice of trunk-based development

B. prevents over-writing code or configuration files

C. facilitates resolving conflicts when merging code

D. ensures that unit tests are written

25. Which product provides network controller-level management features?

A. Cisco DNA Center

B. Cisco NX-OS

C. Cisco UCS Manager

D. Cisco ISE

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