Question

Match List-I with List-II:

List-I (Device)	List-II (Use)
(A) RJ45 Connector	(I) relay frames between two originally separate segments that follow same protocols.
(B) Bridge	(II) amplifies a signal that is transmitted across the network so that the signal is received same as it is sent.
(C) Gateway	(III) establishes an intelligent connection between a local area network and external networks with completely different structures.
(D) Repeater	(IV) plug-in device primarily used for connecting LANs particularly Ethernet.

• (A) - (IV), (B) - (III), (C) - (II), (D) - (I)
• (A) - (III), (B) - (II), (C) - (I), (D) - (IV)
• (A) - (III), (B) - (I), (C) - (IV), (D) - (II)
• (A) - (IV), (B) - (I), (C) - (III), (D) - (II)

Answer 1

The Correct Option is D

To correctly match the List-I (Device) with List-II (Use), we need to understand the function of each device: 

1. RJ45 Connector: This device is a plug-in device primarily used for connecting LANs, particularly Ethernet. Thus, it matches with (IV).
2. Bridge: A bridge is used to relay frames between two originally separate segments that follow the same protocols. Therefore, it matches with (I).
3. Gateway: This device establishes an intelligent connection between a local area network and external networks with completely different structures. This corresponds to (III).
4. Repeater: It amplifies a signal that is transmitted across the network so that the signal is received the same as it is sent. Thus, it matches with (II).

Matching these, the correct pairs are: (A) - (IV), (B) - (I), (C) - (III), (D) - (II).

Answer 2

The correct matching of networking devices (List-I) with their uses (List-II) is (A)-(IV), (B)-(I), (C)-(III), (D)-(II).

Additional Context:

• Device-Function Matching:
  • RJ45 Connector (A) - (IV):
    • Plug-in device for Ethernet/LAN connections
    • Physical interface for network cables
  • Bridge (B) - (I):
    • Relays frames between network segments
    • Works with same protocols (e.g., Ethernet to Ethernet)
  • Gateway (C) - (III):
    • Connects dissimilar networks (e.g., LAN to WAN)
    • Performs protocol translation
  • Repeater (D) - (II):
    • Amplifies/regenerates signals
    • Extends network reach without protocol changes
• Comparison with Other Options:
  • Option (1): Incorrect (mismatches Gateway and Repeater)
  • Option (2): Incorrect (swaps Bridge/Gateway functions)
  • Option (3): Incorrect (wrong RJ45 and Repeater pairing)
• Key Concepts:
  • OSI Layers:
    • RJ45: Layer 1 (Physical)
    • Bridge: Layer 2 (Data Link)
    • Gateway: Layer 4+ (Transport and above)
    • Repeater: Layer 1 (Physical)

Correct Answer: (4) (A)-(IV), (B)-(I), (C)-(III), (D)-(II)