Question 451 · 530 in bank
Which service must be configured to provide time synchronization to the devices on a network to make it easier to correlate log events?
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Answer: D
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200-901 practice questions 451–460
Developing Applications and Automating Workflows using Cisco Platforms (DEVASC)530 questions across 53 pages are complete and free, with no account or card.
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Question 452 · 530 in bank
Refer to the exhibit. A developer is creating a YANG file to design data with Python. Which code must be used for the tree of the YANG file?
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Answer: A
Question 453 · 530 in bank
A network engineer developed an application that performs configuration automation. The engineer used the MVC model for the application design. It has a web interface for users to interact, collect configuration directives for specific devices, and communicate with network devices through REST-based APIs. What is the advantage of the model component in MVC design in this scenario?
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Answer: A
Question 454 · 530 in bank
DRAG DROP - Drag and drop the characteristics from the left onto the software development methods on the right.
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
Explanation
agile - delivering incremental - delivering iterative releases lean - optimizing development time and resources and eliminatingwaste - delivering only what the product needs waterfall - specifying all the requirements ... - completing each step ....
Source: Adapted from community discussion — Muste
Question 455 · 530 in bank
What is impacted by the network bandwidth on an application?
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Answer: D
Explanation
Time taken for a data packet to travel between two endpoints (latency) depends on factors like distance, routing, and propagation delay. It is not directly tied to bandwidth.
Source: Adapted from community discussion — Muste
Question 456 · 530 in bank
A developer is trying to retrieve data over a REST API. The API server responds with an HTTP client error response code. After investigating the response, the developer realizes the response has a Retry-After header. What is the root cause of this error?
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Answer: C
Explanation
C is the answer because the API Server is the one complaining about the rate. The question states that the API Server itself is responding, and all other options would not be applicable to that case.
Source: Adapted from community discussion — aprettyparrot
Question 457 · 530 in bank
Which network device plane is responsible for handling QoS?
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Answer: D
Explanation
The control plane performs forwarding decisions and other functions, like quality of service (QoS). In contrast, the data plane is the network that switches or forwards devices handling the data packets and taking inputs from the control plane.
Source: Adapted from community discussion — cecb9b9
Question 458 · 530 in bank
Refer to the exhibit. A developer needs to write a Python script to automate a task using a NETCONF query. What does the query do?
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Answer: A
Question 459 · 530 in bank
A network engineer makes several API calls to Cisco Prime to retrieve a list of all devices. Each time a response is received, only a subset of the devices is returned. The engineer notices that HTTP code 429 is returned instead of 200 for some API calls. Why did the response exclude some of the devices?
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Answer: D
Question 460 · 530 in bank
Refer to the exhibit.
A developer needs to upload a local file by using the REST API. The developer gathers information according to the documentation and sends the request by using the cURL command in the exhibit but gets an error code. Which action should be followed to get a valid response?
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Answer: B
Explanation
--header "Content-Type: application/json" \ Is needed when you send Remote Attachments not for Local File Attachments. B is Correct You can find this information on: https://developer.webex.com/docs/api/basics
Source: Adapted from community discussion — Ram0n_Aya1a
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