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Questions and Answers
What happens if an error-free ACK arrives with an ackNo related to one of the outstanding packets in the Go-Back-N protocol?
What happens if an error-free ACK arrives with an ackNo related to one of the outstanding packets in the Go-Back-N protocol?
- The packet is marked as acknowledged and the window slides to the right. (correct)
- The sender resends all unacknowledged packets in the window.
- The packet is discarded and ACK is sent with ackNo = seqNo.
- The sender restarts the timer for all packets.
In case of a corrupted ACK or an error-free ACK with ackNo not related to outstanding packets arriving, what action is taken in the Go-Back-N protocol?
In case of a corrupted ACK or an error-free ACK with ackNo not related to outstanding packets arriving, what action is taken in the Go-Back-N protocol?
- The sender moves to the ready state.
- The sender slides its window to the right.
- The ACK is discarded. (correct)
- All unacknowledged packets are immediately resent.
What does the receiver do when an error-free packet with seqNo in the window arrives in the Go-Back-N protocol?
What does the receiver do when an error-free packet with seqNo in the window arrives in the Go-Back-N protocol?
- Slides the window to the first empty slot.
- Sends an ACK with ackNo = seqNo and discards the packet.
- Sends an ACK with ackNo = seqNo and delivers the packet to the application layer. (correct)
- Discards the packet without sending any ACK.
What is the purpose of sending an ACK with ackNo = Rn when an error-free packet with seqNo outside the window arrives at the receiver in the Go-Back-N protocol?
What is the purpose of sending an ACK with ackNo = Rn when an error-free packet with seqNo outside the window arrives at the receiver in the Go-Back-N protocol?
What action does the sender take when a time-out occurs in the Go-Back-N protocol?
What action does the sender take when a time-out occurs in the Go-Back-N protocol?
What is always true about the receiver's state in the Go-Back-N protocol?
What is always true about the receiver's state in the Go-Back-N protocol?
What does the term 'cumulative' mean in the context of acknowledgment numbers in networking?
What does the term 'cumulative' mean in the context of acknowledgment numbers in networking?
In TCP segment format, what does the 'Sequence number' field indicate?
In TCP segment format, what does the 'Sequence number' field indicate?
How does TCP ensure connectivity during data transmission?
How does TCP ensure connectivity during data transmission?
What is the significance of Source port address in a TCP segment?
What is the significance of Source port address in a TCP segment?
Why is it important for an acknowledgment number to be cumulative in networking?
Why is it important for an acknowledgment number to be cumulative in networking?
What does the term 'Segment Format' refer to in networking?
What does the term 'Segment Format' refer to in networking?
In the context of acknowledgment numbers in computer communication networks, what does an acknowledgment number represent?
In the context of acknowledgment numbers in computer communication networks, what does an acknowledgment number represent?
If packet 2 has arrived successfully at the receiver in a Go-Back-N protocol, what acknowledgment number will be sent by the receiver?
If packet 2 has arrived successfully at the receiver in a Go-Back-N protocol, what acknowledgment number will be sent by the receiver?
What is the purpose of the control variable 'S' in the sender's side in a computer communication network?
What is the purpose of the control variable 'S' in the sender's side in a computer communication network?
In a Stop-and-Wait protocol, what state is the sender initially in?
In a Stop-and-Wait protocol, what state is the sender initially in?
Why is it important for both ends to be in the established state before exchanging data packets in connection-oriented protocols?
Why is it important for both ends to be in the established state before exchanging data packets in connection-oriented protocols?
What event triggers the sender to create a packet in the ready state of a Stop-and-Wait protocol?
What event triggers the sender to create a packet in the ready state of a Stop-and-Wait protocol?
