IT and Technology IoT & Emerging Technologies 2 — Questions and Answers
Question 1: What is the primary advantage of using blockchain for IoT data integrity?
- Faster data transmission speed
- Tamper-evident, decentralized record of device transactions (Correct answer)
- Lower power consumption on sensors
- Simplified device provisioning
Correct answer: Tamper-evident, decentralized record of device transactions
Blockchain creates an immutable, distributed ledger of IoT transactions, making it extremely difficult to alter historical sensor records without detection.
Question 2: Which machine learning deployment technique runs AI models directly on IoT devices?
- Cloud inference
- Federated learning only
- TinyML / on-device inference (Correct answer)
- Batch processing
Correct answer: TinyML / on-device inference
TinyML optimizes machine learning models to run on microcontrollers and low-power chips, enabling real-time AI inference without cloud connectivity.
Question 3: What does '5G network slicing' enable for IoT deployments?
- Physically partitioning cell towers
- Creating virtual dedicated networks with guaranteed QoS for specific IoT use cases (Correct answer)
- Limiting IoT devices to 4G speeds
- Slicing the radio spectrum in half for IoT use
Correct answer: Creating virtual dedicated networks with guaranteed QoS for specific IoT use cases
5G network slicing allows operators to create isolated virtual network segments with specific latency, bandwidth, and reliability guarantees tailored to different IoT applications.
Question 4: Which protocol does Matter (formerly Project CHIP) use as its underlying IP transport for smart home devices?
- Zigbee only
- Z-Wave only
- Thread (IPv6 mesh) (Correct answer)
- Bluetooth Low Energy only
Correct answer: Thread (IPv6 mesh)
Matter uses Thread as its primary IP-based mesh networking protocol, running over IPv6 to provide reliable, low-power smart home device communication.
Question 5: What is the role of a TPM (Trusted Platform Module) chip in IoT security?
- Boosting CPU performance
- Securely storing cryptographic keys and device identity credentials in hardware (Correct answer)
- Managing wireless radio frequencies
- Compressing sensor data before transmission
Correct answer: Securely storing cryptographic keys and device identity credentials in hardware
A TPM provides hardware-based storage for cryptographic keys, certificates, and measurements, enabling secure boot and device attestation.
Question 6: In augmented reality (AR), what is a 'spatial anchor'?
- A physical weight that stabilizes AR glasses
- A persistent coordinate in the real world where AR content is attached (Correct answer)
- A network endpoint for AR streaming
- A GPU optimization technique for AR rendering
Correct answer: A persistent coordinate in the real world where AR content is attached
A spatial anchor is a real-world coordinate saved in a shared space so multiple devices or sessions can display AR content at the exact same physical location.
IT and Technology IoT & Emerging Technologies 2
What is the primary advantage of using blockchain for IoT data integrity?