handout 3 part 2

What is the transmission mode where data can flow in both directions simultaneously?

• Simplex transmission

• Half-duplex transmission

• Full-duplex transmission

• Serial data transmission

Which transmission mode allows data to flow in one direction only?

• Simplex transmission

• Half-duplex transmission

• Full-duplex transmission

• Parallel data transmission

Which type of transmission is used to send data as individual characters?

• Asynchronous transmission

• Synchronous transmission

• Serial data transmission

• Parallel data transmission

Which transmission media requires physical links between devices?

• Guided media

• Unguided media

• Twisted Pair

• Coaxial Cable

Which transmission media uses optical cables to transmit information?

• Twisted Pair

• Coaxial Cable

• Optical Fiber

• Unguided media

Which transmission media uses radio waves for communication?

• Twisted Pair

• Coaxial Cable

• Optical Fiber

• Unguided media

What is the function of an antenna?

• To catch radio waves and turn them into electrical signals

• To transmit and receive wavelengths of signals

• To generate and penetrate through buildings

• To transmit large blocks of data at a time

Which frequency range is designated as Extremely Low Frequency (ELF)?

• 3 KHz to 30 KHz

• 30 MHz to 300 MHz

• 300 KHz to 3000 KHz

• 3 GHz to 30 GHz

Which wave propagation method uses the ionosphere for transmission?

• Ground Wave

• Sky Wave

• Space Wave

• Traveling Wave

What is the purpose of multiplexing in a network?

• To make it possible for any network device to talk to any other network device

• To prevent collisions and avoid interference

• To transmit data as individual characters

• To generate and penetrate through buildings