What are the two types of sliding window ARQ?

What are the two types of sliding window ARQ?

Sliding window protocol has two types: Go-Back-N ARQ. Selective Repeat ARQ.

What are the two types of sliding window ARQ error control how do they differ from one another?

Sliding window ARQ is two types: Go-back-n ARQ, and Selective Reject ARQ.

What are the types of error control methods?

Some of the common techniques used in error control is acknowledgements, timeouts and negative acknowledgements. In a network, two types of errors occur: single-bit errors and burst errors. With a single-bit error, only one bit of data is altered; in a burst error, two or more bits could be altered.

What is sliding window ARQ?

The Sliding Window ARQ (Automatic Repeat reQuest) protocols are of two categories − Go – Back – N ARQ. Go – Back – N ARQ provides for sending multiple frames before receiving the acknowledgment for the first frame. It uses the concept of sliding window, and so is also called sliding window protocol.

What is sliding window protocol explain Go Back N ARQ sliding window protocols which are used for flow control?

A sliding window protocol is a feature of packet-based data transmission protocols. Sliding window protocols are used where reliable in-order delivery of packets is required, such as in the data link layer (OSI layer 2) as well as in the Transmission Control Protocol (TCP).

How error detection and correction is done?

7. How error detection and correction is done? Explanation: Error can be detected and corrected by adding additional information that is by adding redundancy bits. Explanation: CRC is more powerful and it can detect various kind of errors like 2 bit errors.

What are the functions of LLC?

The primary function of LLC is to multiplex protocols over the MAC layer while transmitting and likewise to de-multiplex the protocols while receiving. LLC provides hop-to-hop flow and error control. It allows multipoint communication over computer network. Frame Sequence Numbers are assigned by LLC.

What are the two types of ARQ?

Variations of ARQ protocols include Stop-and-wait ARQ, Go-Back-N ARQ, and Selective Repeat ARQ. All three protocols usually use some form of sliding window protocol to help the sender determine which (if any) packets need to be retransmitted.

What is the need for ARQ?

Automatic Repeat Request (ARQ) is an error-control mechanism for data transmission which uses acknowledgements (or negative acknowledgements) and timeouts to achieve reliable data transmission over an unreliable communication link.

What is sliding window ARQ protocol?

The Sliding Window ARQ (Automatic Repeat reQuest) protocols are of two categories − Go – Back – N ARQ provides for sending multiple frames before receiving the acknowledgment for the first frame. It uses the concept of sliding window, and so is also called sliding window protocol.

What are the different types of sliding window protocols?

Types of Sliding Window Protocols. The Sliding Window ARQ (Automatic Repeat reQuest) protocols are of two categories −. Go – Back – N ARQ. Go – Back – N ARQ provides for sending multiple frames before receiving the acknowledgment for the first frame. It uses the concept of sliding window, and so is also called sliding window protocol.

What are the different types of ARQ?

Types of ARQ… ARQ technique Sliding Window Protocol Stop and Wait ARQ Go-Back-N Selective Reject 5.  The sliding window ARQ technique has two two categories, namely, 1. Go-Back –N 2. Selective Repeat 6.

What is the sequence numbering of the sliding window windows?

So the sequence numbering of both the windows will be 0,1,2,3,0,1,2 and so on. The following diagram shows the positions of the windows after sending the frames and receiving acknowledgments. The Sliding Window ARQ (Automatic Repeat reQuest) protocols are of two categories −