Solution

The correct answer is A - II, B - IV, C - III, D - I

Key Points

• Representation of bits (A):
  • This is handled by the Physical layer, which deals with the transmission and reception of raw bit streams over a physical medium. Therefore, A matches with II.
• Physical Address (B):
  • This refers to the hardware address of the device, which is handled by the Data Link layer. Therefore, B matches with IV.
• Logical Address (C):
  • This is used for routing packets across networks and is handled by the Network layer. Therefore, C matches with III.
• Segmentation and reassembly (D):
  • This is a function of the Transport layer, which ensures that data is properly segmented for transmission and reassembled at the destination. Therefore, D matches with I.

Therefore, the correct option is A - II, B - IV, C - III, D - I. So, the correct option is 2).