Which protocol is for data transmission and is bi-directional, used in the data link layer that corresponds to layer 2 of OSI modelQuestion 2Select one:a.Sending windowb.Stop and wait ARQc.Sliding windowd.All of thesee.Sliding window protocol

The protocol for data transmission that is bi-directional and used in the data link layer (which corresponds to layer 2 of the OSI model) is the Sliding Window Protocol. So, the answer is e. Sliding Window Protocol.

Here's a step-by-step explanation:

1. The OSI model (Open Systems Interconnection model) is a conceptual model that characterizes and standardizes the communication functions of a telecommunication or computing system without regard to its underlying internal structure and technology.

2. The second layer of the OSI model is the Data Link Layer. This layer is responsible for node-to-node data transfer—a link between two directly connected nodes. It also detects and possibly corrects errors that may occur in the Physical Layer.

3. The 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 model) as well as in the Transmission Control Protocol (TCP).

4. So, the Sliding Window Protocol is a method used for controlling transmitted data packets between two network computers where reliable and sequential delivery of data packets is required. It's bi-directional, meaning it allows data to be transmitted in both directions.