Question

Match LIST-I with LIST-II:\[\begin{array}{|c|c|}\hline \text{LIST-I} & \text{LIST-II} \\ \hline \text{A. Physical} & \text{I. Bit} \\ \hline \text{B. Data Link} & \text{II. Frame} \\ \hline \text{C. Network} & \text{IV. Packet} \\ \hline \text{D. Transport} & \text{III. TPDU} \\ \hline \end{array}\] Choose the correct answer from the options given below:

• A. A - I, B - III, C - II, D - IV
• B. A - I, B - II, C - III, D - IV
• C. A - III, B - II, C - IV, D - I
• D. A - I, B - II, C - IV, D - III

Hint:

Each layer of the OSI model has a specific unit of data it handles. Be sure to associate layers with the correct data units (bit, frame, packet, TPDU).

Answer 1

The Correct Option is B

In the OSI model: - **Physical Layer** (A) deals with the transmission of **bits** (I). - **Data Link Layer** (B) is responsible for the transmission of **frames** (II). - **Network Layer** (C) is responsible for handling **packets** (IV). - **Transport Layer** (D) deals with **TPDU** (III), or Transport Protocol Data Units. Step 2: Conclusion.
Thus, the correct matching is **A - I, B - II, C - III, D - IV**.