IOT IoT Cloud Platforms 3

Question 1

What is the AWS IoT SiteWise service specifically designed for?

Accepted Answer

Collecting, organizing, and analyzing data from industrial equipment and processes

Answer

Managing retail IoT point-of-sale devices

Answer

Providing GPS tracking for IoT assets

Answer

Managing residential smart home devices

Question 2

What does Azure Digital Twins enable in an IoT solution?

Accepted Answer

Modeling physical environments as interconnected digital graphs of spaces, devices, and processes

Answer

Creating backup copies of Azure IoT Hub instances

Answer

Providing twin data centers for IoT redundancy

Answer

Duplicating IoT device firmware across multiple devices

Question 3

Which IoT cloud platform feature enables 'over-the-air' (OTA) firmware updates for large device fleets?

Accepted Answer

IoT Jobs (AWS) / Device Update for IoT Hub (Azure)

Answer

Device shadow synchronization

Answer

Cloud-to-device messaging only

Answer

MQTT retained messages

Question 4

What is the key difference between 'hot storage' and 'cold storage' in IoT cloud data architecture?

Accepted Answer

Hot storage is fast, expensive, and for recent/frequently queried data; cold storage is slow, cheap, and for historical archive data

Answer

Hot storage is physically warmer due to server heat

Answer

Hot storage is for real-time devices; cold storage is for offline devices

Answer

Hot storage uses SSDs; cold storage uses magnetic tape only

Question 5

What is the purpose of 'device provisioning services' like AWS IoT Device Provisioning or Azure IoT Hub DPS?

Accepted Answer

Automatically registering and configuring IoT devices at scale with zero-touch provisioning

Answer

Providing physical device shipment tracking

Answer

Provisioning cloud compute resources for IoT

Answer

Providing billing provisioning for IoT services

Question 6

Which AWS service is used to run stream processing queries on IoT data in real time using SQL?

Accepted Answer

Amazon Kinesis Data Analytics

Answer

AWS Glue

Answer

Amazon Redshift

Answer

AWS IoT Analytics