200-901 practice questions 431–440

1. Question 431 · 530 in bank

   What is a principle of test-driven development?

   • Awrite and run tests before writing new code
   • Bwrite tests after adding new blocks of code
   • Crun tests after writing new code
   • Dwrite documentation for tests

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   Answer: A

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2. Question 432 · 530 in bank

   DRAG DROP - Drag and drop the protocols from the left onto the management technologies on the right that expose the protocols to network engineers.

   

   This is an interactive task on the real exam — a drag-and-drop, hotspot or ordering question. There is nothing to select here, so the answer is shown below for reference.

   Show the answer figure

   Answer: See figure below

   

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3. Question 433 · 530 in bank

   Calling a REST API returns a 404 error. What does this code represent?

   • AA query parameter is missing.
   • BThe URI being requested is incorrect.
   • CA header is missing.
   • DThe payload is formatted incorrectly.

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   Answer: B

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4. Question 434 · 530 in bank

   A 401 HTTP response code is returned when calling a REST API. What is the error state identified by this response code?

   • AThe server cannot process the request as it has detected an issue in the request syntax or body.
   • BThe request has not been accepted because it requires authentication.
   • CThe sever accepted the request but the client is not authorized for this content.
   • DThe server cannot find the requested resource because the path specified is incorrect.

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   Answer: B

   Explanation

   Remember this: - 401 is for authentication - this means that the user didn't provide credentials or the credentials are wrong - 403 is for authorization - in this case, the user provided the correct authentication credentials but isn't authorized to see the content In this case, since we are talking about 401 HTTP status code (authentication) option C doesn't apply. (To option C be correct we should be talking about 403 HTTP status code)

   Source: Adapted from community discussion — Sliking

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5. Question 435 · 530 in bank

   Which Cisco network management platform should be used for integration with DevOps toolchains and third-party services in a service provider environment?

   • ACisco NSO
   • BCisco DNA Center
   • CCisco ACI
   • DCisco SD-WAN

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   Answer: A

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6. Question 436 · 530 in bank

   Which unique identifier allows network traffic to be routed to a host?

   • Ahostname
   • Bnetwork prefix
   • CIP address
   • Dsubnet mask

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   Answer: C

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7. Question 437 · 530 in bank

   An engineer is creating an API to automatically obtain specific zones from Cisco Meraki MV cameras. The data that is provided when the API runs must represent the current analytic zones that are configured on the cameras. The API must start automatically at 6 p.m. every day and save the data on a server for further processing. Which part of the HTTP request must be configured to meet these requirements?

   • Arequest body with Status Code set to "302"
   • Brequest body with Content-Type set to "application/xml"
   • Crequest header with Content-Type set to "application/json"
   • Drequest header with Content-Encoding set to "application/xml"

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   Answer: C

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8. Question 438 · 530 in bank

   A developer has created a three-tier web application for network device control and management. The application consists of multiple objects assigned for different functionalities. The architecture of the application is based on the Observer pattern. Which advantage does this pattern provide for the application design and architecture?

   • AIndependent observers are updated automatically.
   • BIt updates the state of dependent subjects directly.
   • COne observer can query the state of other subjects
   • DIt decouples the subjects from the observers.

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   Answer: D

   Explanation

   The Observer pattern decouples the subjects from the observers. The separation is achived by loose coupling, independence and dynamic registration.

   Source: Adapted from community discussion — uzu13

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9. Question 439 · 530 in bank

   Which type of OWASP threat forges a malicious HTTP request into an application?

   • AClickjacking
   • BSQL Injection
   • CXSS
   • DCSRF

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   Answer: D

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10. Question 440 · 530 in bank

    What is a difference between REST and RPC API styles?

    • ARPC uses HTML format and REST uses JSON format.
    • BRPC has a single style and REST has multiple styles
    • CRPC uses the POST operation to update and REST uses the PUT operation to update.
    • DRPC is stateful in nature and REST is stateless in nature.

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    Answer: D

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200-901 practice, question 431. 530 questions available.