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WorksheetsECE420 - IoT Quiz
Total questions: 40
Worksheet time: 30mins
What is the main difference between IoT and Cellular IoT (CIoT)?
IoT only uses WiFi
CIoT uses cellular networks like 2G-5G, NB-IoT, LTE-M
IoT does not connect wearables
CIoT only works in urban areas
Which cellular network introduced the UMTS system for faster data speeds?
2G
3G
4G LTE
5G
LTE is often marketed as 4G, but technically classified as:
2G
3G
4.5G
5G
What feature makes 5G suitable for IoT?
Only supports SMS
Higher latency
Supports many devices in small spaces with low latency
Limited coverage
NB-IoT is best suited for which application?
Wearables and asset tracking
Smart meters and agriculture sensors
Video streaming services
Autonomous cars
LTE-M has an advantage over NB-IoT because it:
Uses less bandwidth
Does not support mobility
Enables voice (VoLTE) and faster data
Works only underground
Which is not a key feature of Cellular IoT?
Wide coverage
Massive scalability
Unlimited free internet
Reliability
Which of the following is not an application of Cellular IoT?
Smart Cities
Transportation
Gaming Consoles
Healthcare
Which cloud service currently holds the largest global market share?
Microsoft Azure
Google Cloud Platform
Amazon Web Services (AWS)
IBM Cloud
In CIoT architecture, which component authenticates the device?
Cloud services
Radio Access Network (RAN)
Core Network
Nearest cell site
Medium-range IoT communication technologies are mainly used to:
Connect devices only within a room
Provide short-range NFC communication
Link IoT devices to local networks and the internet
Replace wired broadband connections
Wi-Fi operates under which IEEE standard?
IEEE 802.3
IEEE 802.11
IEEE 802.15.1
IEEE 802.16
Which of the following is not a feature of Wi-Fi?
High-speed connectivity
2.4GHz and 5GHz bands
Physical cable requirement
Security protocols
One major disadvantage of Wi-Fi compared to other IoT technologies is:
Convenience
Mobility
Limited range and interference
Cost-effectiveness
LoRaWAN is based on which physical layer technology?
Ultra-Narrowband (UNB)
LoRa
Bluetooth
GSM
Which of the following is not a feature of LoRaWAN?
Long range
Low power consumption
High cost infrastructure
Multi-usage capacity
Sigfox communication is best described as:
High-speed broadband for IoT
Medium-range, low-power, low data rate communication
Short-range wireless technology like Bluetooth
A Wi-Fi extension protocol
Which feature of Sigfox helps resist interference?
High data rate
Ultra-Narrowband (192kHz UNB)
Wi-Fi router encryption
Multi-band antennas
Based on the comparison table, which technology consumes the most power?
Wi-Fi
LoRaWAN
Sigfox
All consume the same
Which security measure is unique to Sigfox?
WPA3 encryption
Mutual authentication
Built-in firewall and replay avoidance
Session key distribution
Which standard defines Bluetooth technology?
IEEE 802.11
IEEE 802.15.1
IEEE 802.15.4
ISO/IEC 18092
What is the typical operating frequency of Bluetooth?
5 GHz
868/915 MHz
2.4 GHz
13.56 MHz
Bluetooth Low Energy (BLE) is mainly used for:
High-speed video streaming
Low-energy data exchange in IoT devices
Satellite communication
Long-range broadband connectivity
ZigBee is based on which IEEE standard?
IEEE 802.15.1
IEEE 802.11
IEEE 802.15.4
ISO/IEC 18092
What is one major advantage of ZigBee?
Very high data rate
Mesh networking with up to 65,000 devices
Works without a hub
Indoor range up to 1 km
Z-Wave operates in which frequency band?
2.4 GHz
Sub-GHz (868/915 MHz)
5 GHz
13.56 MHz
Compared to ZigBee, Z-Wave:
Supports more nodes (65,000+)
Has faster data transfer
Provides better indoor range and wall penetration
Requires no hub
Near Field Communication (NFC) operates at:
868/915 MHz
2.4 GHz
5 GHz
13.56 MHz
What is the maximum effective range of NFC?
10 meters
1 meter
10 cm
100 meters
Which of the following is a limitation of NFC?
Low power consumption
Limited to 2 devices only
Very high security
Widespread adoption in smartphones
What is the main idea of Edge Computing?
Processing all data only in the cloud
Storing and processing data closer to its source
Using satellites for faster communication
Replacing IoT devices with servers
Which of the following is not an advantage of Edge Computing?
Low latency
Saves bandwidth
Enables real-time decisions
Unlimited free storage
Which device collects environmental data such as temperature and motion?
Actuator
Router
IoT Sensor
Edge Server
Actuators are best described as:
Devices that measure data
Output devices carrying out actions (e.g., motor, valve, relay)
Network bridges for IoT
Controllers for data processing
In smart farming, what happens when a soil moisture sensor detects dryness?
The actuator shuts down
The water pump is activated
The gateway disconnects
The router resets
Which of the following is a traditional industrial controller?
Beckhoff IPC
Arduino Portenta Machine Control
Siemens SIMATIC IoT2040
SCADA
The role of an IoT Gateway is to:
Act as the main data center
Collect, filter, and translate device data before forwarding
Replace routers and switches
Control industrial machinery
What is the main difference between a router and a switch?
Routers direct data within LAN only, switches connect WAN
Switches connect multiple devices in a local network, routers connect LAN to WAN
Switches assign IP addresses, routers only split data
Both function exactly the same
Edge servers can be described as:
Mini data centers located close to devices and users
The same as traditional cloud servers
Routers with extra storage
Wireless repeaters for IoT
Which of the following is a role of Edge Servers?
Assign IP addresses
Handle real-time data and reduce latency
Work only as backup routers
Connect IoT devices directly to satellites
