Wireless Communication Quiz

What is duplexing in wireless communication?

• The process of converting analog signals to digital signals.

• The process of transmitting and receiving data simultaneously on the same frequency.

• The process of encoding data for secure transmission.

• The process of amplifying weak signals for long-distance transmission.

Which generation of cellular systems introduced the concept of analog voice transmission?

• 1G

• 2G

• 3G

• 4G

Which propagation model describes the loss of signal strength with distance in an unobstructed environment?

• Free-space attenuation model

• Multipath channel model

• Path-loss model

• Signal fading statistics model

What is the fundamental difference between cellular and Wi-Fi networks in terms of coverage?

• Cellular networks have larger coverage areas compared to Wi-Fi networks.

• Wi-Fi networks have larger coverage areas compared to cellular networks.

• Both cellular and Wi-Fi networks have similar coverage areas.

• Wi-Fi networks use a different frequency band for coverage.

Which mobile communication standard utilizes the Global System for Mobile (GSM) architecture?

• 3G

• LTE

• GSM

• Wi-Fi

Which Aloha variant divides time into discrete slots to improve efficiency?

• Aloha

• Slotted Aloha

• Pure Aloha

• Adaptive Aloha

Which type of multiplexing allocates a fixed portion of bandwidth to each communication channel?

• Fixed Assignment Multiplexing

• Statistical Multiplexing

• Time-Division Multiplexing

• Frequency-Division Multiplexing

Which band requires a license from regulatory authorities for wireless communication?

• Unlicensed bands

• ISM bands

• Industrial bands

• Licensed bands

Which Wi-Fi standard introduced the concept of RTS-CTS (Request to Send-Clear to Send) mechanism?

• 802.11a

• 802.11b

• 802.11g

• 802.11n

Which process is commonly used to model the arrival of packets in Aloha-based systems?

• Exponential distribution

• Gaussian distribution

• Poisson process

• Bernoulli process