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WorksheetsATE6123 Fundamental of Wireless Communications - Topic 3
Total questions: 10
Worksheet time: 5mins
What is the typical maximum range of a Wireless Personal Area Network (WPAN)?
1 kilometer
100 meters
10 meters
500 meters
What is one major advantage of WPANs?
High-speed long-distance communication
Use of fiber optic cables
Elimination of wires and low power usage
Requires large infrastructure
Bluetooth operates in which frequency band?
900 MHz
1.8 GHz
2.4 GHz ISM band
5 GHz band
What is the maximum number of active slaves a master can connect to in a Bluetooth piconet?
5
7
10
200
Which of the following is true about passive RFID tags?
They have high storage capacity and long read range
They contain an internal battery
They are typically read-only and have shorter read ranges
They cost more than active tags
What is one main advantage of RFID over barcodes?
Requires line of sight to be read
Can only read one item at a time
Tags must be manually scanned
Can read multiple items without line of sight
What type of coupling is used in Low Frequency (LF) RFID communication?
Propagation coupling
Capacitive coupling
Inductive coupling
Electrical coupling
What is the operating frequency of NFC technology?
125 KHz
900 MHz
13.56 MHz
2.4 GHz
What is one reason NFC is considered secure for mobile payments?
It uses magnetic stripe data
It relies on user-entered PINs
It uses dynamically encrypted data
It stores payment information in plain text
What is a major challenge in securing WPANs?
They use only wired communication
Devices have unlimited processing power
Small devices struggle with complex encryption due to limited resources
WPANs require no authentication or encryption
