Ans: In case of Stop-and-Wait protocol, the transmitter after sending a frame waits for the acknowledgement from the receiver before sending the next frame. This protocol works efficiently for
long frames
, where propagation time is small compared to the transmission time of the frame.
In which situation stop and wait protocol works efficiently?
Ans: In case of Stop-and-Wait protocol, the transmitter after sending a frame waits for the acknowledgement from the receiver before sending the next frame. This protocol works efficiently for
long frames
, where propagation time is small compared to the transmission time of the frame.
Where stop and wait protocol is used?
The stop and wait protocol is a flow control protocol where flow control is one of the services of the data link layer. It is a data-link layer protocol which is used
for transmitting the data over the noiseless channels
.
Which one is better protocol for noisy channel?
Simplex Stop – and – Wait protocol for noisy channel is data link layer protocol for data communications with error control and flow control mechanisms. It is popularly known as
Stop – and –Wait Automatic Repeat Request (Stop – and –Wait ARQ) protocol
.
How Sliding window protocol is better than stop and wait protocol?
The main difference between Stop-and-wait protocol and Sliding window protocol is that in Stop-and-Wait Protocol, the sender sends one frame and wait for acknowledgment from the receiver whereas in sliding window protocol,
the sender sends more than one frame to the receiver and re-transmits the frame(s) which is/are
…
What is stop protocol?
It is
the simplest flow control method
. In this, the sender will send one frame at a time to the receiver. The sender will stop and wait for the acknowledgment from the receiver.
What is simple stop and wait protocol?
Stop-and-wait ARQ, also referred to as alternating bit protocol, is
a method in telecommunications to send information between two connected devices
. It ensures that information is not lost due to dropped packets and that packets are received in the correct order. … The above behavior is a basic example of Stop-and-Wait.
What is the main disadvantage of stop and wait protocol?
disadvantages of stop-and-wait:
fairly slow: the sender can send at most one new packet per RTT
.
not robust
: if the ack can get lost, when the receiver gets a packet, the receiver cannot tell if it is a retransmission or a new packet.
How many events are there in stop and wait protocol for a single frame?
In this protocol, the sender sends one frame and waits for feedback from the receiver. When the ACK arrives, the sender sends the next frame. Note that sending two frames in the protocol involves the sender in
four events
and the receiver in two events.
What is the size of the sender window in the Go Back N ARQ protocol?
The size of the sender’s window is
4
. Step 1: As the window size is 4, so four packets are transferred at a time, i.e., packet no 1, packet no 2, packet no 3, and packet no 4.
What are the three protocols for noisy channels?
- Stop-and-Wait Automatic Repeat Request. The Stop-and-Wait Automatic Repeat Request (Stop-and-Wait ARQ), adds a simple error control mechanism to the Stop-and-Wait Protocol. …
- Go-Back-N Automatic Repeat Request. …
- Selective Repeat Automatic Repeat Request.
What is noise less channel?
An idealistic channel in which no frames are lost, corrupted or duplicated
. There are two protocols for the noiseless channel as follows. … Simplest Protocol – We consider here that the receiver can maintain any frame received with insignificant processing time.
What is go-back-N ARQ protocol?
Go-Back-N ARQ is
a specific instance of the automatic repeat request (ARQ) protocol
, in which the sending process continues to send a number of frames specified by a window size even without receiving an acknowledgement (ACK) packet from the receiver. … It can transmit N frames to the peer before requiring an ACK.
What are the advantages of sliding window protocol?
- It controls the speed of transmission so that no fast sender can overwhelm the slower receiver;
- It allows for orderly delivery, as we will show;
- It allows for retransmission of lost frames, specific retransmission policy depends on the specific implementations.
What are the flow control protocol?
Flow control is
a synchronization protocol for transmitting and receiving units of information
. It determines the advance of information between a sender and a receiver, enabling and disabling the transmission of information.
What is the maximum size of the sender and receiver window using stop and wait protocol?
In stop and wait ARQ, Sender window size is
1
. This allows the sender to keep only one frame unacknowledged. So, sender sends one frame and then waits until the sent frame gets acknowledged.
