Exam AZ-220 topic 6 question 18 discussion

Actual exam question from Microsoft's AZ-220

Question #: 18
Topic #: 6

You have an Azure IoT solution that contains 20 IoT devices. Each device typically sends five Message Queuing Telemetry Transport (MQTT) messages per minute.

You need to configure an alert to detect which devices have an anomalous MQTT message send rate.

What should you do?

A. Create an Azure IoT hub and an IoT alert that has the following settings:
• Condition: C2D message deliveries completed
• Threshold: Static
• Threshold value: 15
• Aggregation granularity: 5 minutes
B. Create an Azure IoT hub and an IoT alert that has the following settings:
• Condition: C2D message deliveries completed
• Threshold: Static
• Operator: Greater than
• Aggregation type: Average
• Threshold value: 30
C. Enable Azure Defender for IoT and create a custom rule that has the following settings:
• Custom Alert: Number of device to cloud messages (MQTT protocol) is not in allowed range
• Minimal Threshold: 30
• Maximum Threshold: 60
• Time Window Size: 00:05:00
D. Enable Azure Defender for IoT and create a custom rule that has the following settings:
• Custom Alert: Number of device to cloud messages (MQTT protocol) is not in allowed range
• Minimal Threshold: 20
• Maximum Threshold: 30
• Time Window Size: 00:05:00

Show Suggested Answer

Suggested Answer: D 🗳️

by j_c_000 at May 30, 2023, 5:15 p.m.

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Tyrel

2 years ago

Selected Answer: D

Yep, D

upvoted 1 times

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j_c_000

2 years, 1 month ago

Selected Answer: D

Isn't it D? 5 messages/min over 5 mins is 25 messages? Outside 20-30 range would be anomalous

upvoted 2 times

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