Chapter 14.2

What is the primary characteristic of circuit switching?

• It allows multiple users to share a channel.

• It is primarily used for data transmission.

• It breaks messages into packets.

• It uses a dedicated channel for the entire connection.

Which of the following is a drawback of circuit switching?

• It can handle real-time data streams effectively.

• It requires less bandwidth than packet switching.

• It allows for easy expansion of traffic usage.

• It ties up the communication line even when idle.

What is a key advantage of packet switching?

• It guarantees packets arrive in the same order.

• It requires a dedicated transmission path.

• It is faster than circuit switching.

• It can reroute packets in case of a fault.

In packet switching, what happens if a packet is lost?

• The packet is automatically resent.

• The entire message is discarded.

• The sender must resend the lost packet.

• The packet is stored until the connection is reestablished.

What is the role of a router in packet switching?

• To establish a dedicated circuit for data transfer.

• To forward packets along the shortest route.

• To encrypt data packets for security.

• To ensure packets arrive in the correct order.

Which of the following is NOT a feature of circuit switching?

• A dedicated transmission path is required.

• Bandwidth is wasted when the circuit is idle.

• Packets can take different routes to the destination.

• The actual route must be set up before transmission.

What does a packet header contain?

• Only the destination IP address.

• The checksum and routing information.

• The sender's physical address.

• The entire message content.

What is a disadvantage of packet switching?

• It does not support high data transmission rates.

• It is less flexible than circuit switching.

• It can lead to delays while packets are reassembled.

• It requires a dedicated channel.

What happens when the hop number of a packet reaches zero?

• The packet is stored until the connection is restored.

• The packet is sent back to the sender.

• The packet is deleted.

• The packet is forwarded to the next router.

Which of the following is a benefit of circuit switching?

• It provides a dedicated bandwidth for the connection.

• It can handle large amounts of data efficiently.

• It is more cost-effective than packet switching.

• It allows for easy rerouting of packets.