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

AWS IoT SiteWise is a managed service purpose-built for collecting, organizing, and analyzing data from industrial equipment, OPC-UA servers, and manufacturing processes.

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

Azure Digital Twins enables the creation of comprehensive knowledge graphs representing physical environments — buildings, factories, cities — with live IoT data flowing through them.

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

AWS IoT Jobs and Azure's Device Update for IoT Hub manage the orchestration, scheduling, and monitoring of OTA firmware deployments across large device fleets.

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 (like Azure Cosmos DB or DynamoDB) provides fast access for recent IoT data at higher cost, while cold storage (like S3 Glacier or Azure Blob Archive) provides cheap long-term retention.

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

Device provisioning services automate the registration, authentication, and initial configuration of IoT devices at scale, enabling zero-touch deployment without manual setup.

IOT - Internet of Things Practice Test

IOT - Internet of Things Practice Test

IOT IoT Cloud Platforms 3