World of Computer Networking Your CCNA start - Full-duplex versus Half-duplex Transmission Modes

The video tutorial covers the differences between unicast, multicast, and broadcast MAC addresses, and delves into the physical layer properties of full duplex and half duplex communication. Full duplex allows simultaneous data transmission and reception between two devices, using separate channels or wires. In contrast, half duplex permits only one device to send or receive data at a time, which is common in wireless networks and some copper cable setups. The tutorial explains the practical applications and limitations of each mode, providing a comprehensive understanding of data transmission over physical links.

What is the primary characteristic of full duplex communication?

• Data transmission is limited to wireless networks.

• Data is transmitted using a single channel.

• Data can be sent and received simultaneously.

• Data can only be sent in one direction at a time.

In full duplex mode using fiber optic cables, how is data transmitted?

• Using a single wire for both sending and receiving.

• Using two different wires for sending and receiving.

• Using wireless signals for data transmission.

• Using a single channel for all data.

How does full duplex communication work in copper cables?

• By using wireless signals instead of wires.

• By using all wires for sending data only.

• By using some pairs of wires for sending and others for receiving.

• By using a single pair of wires for both sending and receiving.

What is a key limitation of half duplex communication?

• Only one device can send or receive data at a time.

• Data can be sent and received simultaneously.

• It is only applicable to fiber optic cables.

• It requires multiple channels for data transmission.

Which wireless standards operate exclusively in half duplex mode?

• 11a, 11n, and 11ac

• 11n, 11ac, and 11ax

• 11a, 11b, and 11g

• 11b, 11g, and 11ax