Microsoft AZ-220 Dumps - Microsoft Azure IoT Developer PDF Sample Questions

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Exam Code:
AZ-220
Exam Name:
Microsoft Azure IoT Developer
204 Questions
Last Update Date : 21 May, 2024
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Realexamdumps Providing most updated Microsoft Certified: Azure IoT Developer Specialty Question Answers. Here are a few exams:


Sample Questions

Realexamdumps Providing most updated Microsoft Certified: Azure IoT Developer Specialty Question Answers. Here are a few sample questions:

Microsoft AZ-220 Sample Question 1

During the POV phase, telemetry from IoT Hub stops flowing to the hot path. The cold path continues to work.

What should you do to restore the hot path?


Options:

A. Disable the fallback route.
B. Run the Test all routes action.
C. Create an explicit route for the hot path.
D. Modify cold-route to send only some telemetry data to the cold path.

Answer: D

Microsoft AZ-220 Sample Question 2

Note: This question is part of a series of questions that present the same scenario. Each question in the series contains a unique solution that might meet the stated goals. Some question sets might have more than one correct solution, while others might not have a correct solution.

After you answer a question in this section, you will NOT be able to return to it. As a result, these questions will not appear in the review screen.

You are developing a custom Azure IoT Edge module.

The module needs to identify the device ID of the local device.

Solution: You configure the module to read the ProductInfo property of ModuleClient.

Does this meet the goal?


Options:

A. Yes
B. No

Answer: B Explanation: Explanation: Instead read the device ID of the device twin.Note: Device twins are JSON documents that store device state information including metadata, configurations, and conditions. Azure IoT Hub maintains a device twin for each device that you connect to IoT Hub.Device identity properties. The root of the device twin JSON document contains the read-only properties from the corresponding device identity stored in the identity registry.Reference: [Reference:, https://docs.microsoft.com/en-us/azure/iot-hub/iot-hub-devguide-device-twins, , , ]

Microsoft AZ-220 Sample Question 3

You need to recommend the format of telemetry messages to meet the POV requirements.

What should you recommend?


Options:

A. XML
B. Avro
C. JSON

Answer: C Explanation: Explanation: Scenario: POV RequirementsEnsure that all message content during this phase is human readable to simplify debugging.Avro uses a binary format, so it is not human readable.The more lightweight JSON (Javascript object notation) has become a popular alternative to XML for various reasons. A couple obvious ones are:Less verbose- XML uses more words than necessaryJSON is faster- Parsing XML software is slow and cumbersome.Reference: [Reference:, https://blog.cloud-elements.com/json-better-xml, ]

Microsoft AZ-220 Sample Question 4

How should you complete the GROUP BY clause to meet the Streaming Analytics requirements?


Options:

A. GROUP BY HoppingWindow(Second, 60, 30)
B. GROUP BY TumblingWindow(Second, 30)
C. GROUP BY SlidingWindow(Second, 30)
D. GROUP BY SessionWindow(Second, 30, 60)

Answer: B Explanation: Explanation: Scenario: You plan to use a 30-second period to calculate the average temperature reading of the sensors.Tumbling window functions are used to segment a data stream into distinct time segments and perform a function against them, such as the example below. The key differentiators of a Tumbling window are that they repeat, do not overlap, and an event cannot belong to more than one tumbling window.InAnswers:A: Hopping window functions hop forward in time by a fixed period. It may be easy to think of them as Tumbling windows that can overlap, so events can belong to more than one Hopping window result set.Reference: [Reference:, https://docs.microsoft.com/en-us/azure/stream-analytics/stream-analytics-window-functions, ]


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