Unit-2 MCQ

What is the main purpose of IoT data management?

• To discover usage patterns and identify weaknesses in connected devices

• To create the best connected products possible

• To understand users' needs and predict asset wear

• To predict asset wear and enable resource efficiency

What is the key benefit of data validation in the M2M era?

• Creating effective systems

• Ensuring data consistency

• Preventing security breaches

• Enabling resource efficiency

What is the purpose of a staging area in data processing?

• To manage the rate of data flow in the network

• To directly communicate with the distributed systems

• To store data for further processing during ETL

• To provide authentication and authorization for data access

Which IEEE standard is commonly known as Wi-Fi?

• IEEE 802.15.4

• IEEE 802.11

• IEEE 802.15.4e

• IEEE 802.15.4g

What is the range of IEEE 802.15.4 for LR-WPANs?

• Up to 100 meters

• Up to 10 kilometers

• Up to 10 meters

• Up to 1 kilometer

What is the purpose of IEEE 802.15.4e Low Energy (LE) mechanism?

• To trade latency for energy efficiency

• To provide high data rates

• To ensure long-range communication

• To support multi-hop communication

Which IEEE 802.15.4e enhancement allows the creation of application-specific frames?

• Information Elements (IE)

• Enhanced Beacons (EB)

• Multipurpose Frame

• MAC Performance Metric

What is the main characteristic of Zigbee standard?

• High data rate

• Support for large networks

• Long communication range

• High power consumption

Which protocol is used for wireless sensor networking in IoT applications?

• Bluetooth

• Thread

• Z-Wave

• DASH7

What distinguishes Bluetooth Low Energy (BLE) from Bluetooth Classic?

• Lower power consumption

• Higher data rate

• Longer communication range

• Higher power consumption