Question

Match the following layers with their corresponding functionalities:

\[ \begin{array}{|c|c|} \hline \textbf{Layer} & \textbf{Functionality} \\ \hline \text{Networking Layer} & \text{Data packet transfer} \\ \text{Transport Layer} & \text{Host-to-host communication} \\ \text{Data Link Layer} & \text{Error detection and correction} \\ \hline \end{array} \]

Hint:

<div>OSI Model Layers: Layer 2 (Data Link Layer) deals with the physical link. Layer 3 (Networking Layer) is concerned with routing data packets. Layer 4 (Transport Layer) focuses on communication between hosts. </div>

Answer 1

Step 1: Understanding the layers and their functions

• Networking Layer (Layer 3): Responsible for data packet transfer across networks.
• Transport Layer (Layer 4): Provides host-to-host communication, error recovery, and flow control.
• Data Link Layer (Layer 2): Ensures reliable transmission over a physical link, handles error detection and correction.

Thus, the correct matches are:

\[ \begin{array}{|c|c|} \hline \textbf{Layer} & \textbf{Functionality} \\ \hline \text{Networking Layer} & \text{Data packet transfer} \\ \text{Transport Layer} & \text{Host-to-host communication} \\ \text{Data Link Layer} & \text{Error detection and correction} \\ \hline \end{array} \]