Mobile Computing and Communication Quiz

What is the primary advantage of mobile computing?

• Cost-Effective

• Location Freedom

• Time-Consuming

• Complex Hardware

Which of the following is NOT a type of wireless transmission?

• Radio Transmission

• Microwave Transmission

• Fiber Optic Transmission

• Infrared Transmission

What is the frequency range of Ultra High Frequency (UHF) in radio transmission?

• 300 MHz - 3 GHz

• 3 MHz - 30 MHz

• 30 GHz - 300 GHz

• 300 Hz - 3 kHz

In a wireless network, what is the role of an access point?

• Transmit data directly between devices

• Provide wired network access

• Act as a bridge between wireless and wired networks

• Block unauthorized devices

Which antenna type provides 360-degree coverage?

• Yagi Antenna

• Panel Antenna

• Omni-Directional Antenna

• Parabolic Dish Antenna

Which multiplexing technique is commonly used in TV networks?

• Time-Division Multiplexing

• Frequency-Division Multiplexing

• Code-Division Multiplexing

• Space-Division Multiplexing

What is the primary function of a repeater in digital transmission?

• Amplify the signal

• Convert digital to analog signals

• Regenerate and retransmit the signal

• Reduce signal noise

In signal propagation, which range is characterized by a high chance of signal interruption?

• Transmission Range

• Detection Range

• Interference Range

• Communication Range

Which modulation technique changes the amplitude of the carrier signal?

• Frequency Modulation

• Phase Modulation

• Amplitude Modulation

• Pulse Modulation

What is the key advantage of using digital signals over analog signals?

• Lower cost

• Higher data rate

• Less susceptible to noise

• Infinite bandwidth