Solution

The correct answer is Option 4.

Key Points

• Address Resolution Protocol (ARP): It maps IP addresses to physical addresses, enabling devices to identify each other in a network.
• Reverse Address Resolution Protocol (RARP): It maps physical addresses to IP addresses, assisting devices in obtaining an IP address dynamically.
• Internet Control Message Protocol (ICMP): It is used by hosts and routers to send error messages or network diagnostics back to the sender, ensuring proper communication within a network.
• Internet Group Management Protocol (IGMP): It helps multicast routers identify hosts in a LAN that are part of a specific multicast group, facilitating efficient data distribution.

Additional Information

• Uses of Protocols:
  • ARP: Ensures seamless communication between devices by resolving IP addresses to MAC addresses.
  • RARP: Facilitates IP address assignment in scenarios where devices lack permanent IP configurations.
  • ICMP: Provides feedback about network issues, such as unreachable hosts or congested networks.
  • IGMP: Optimizes data transfer for multicast communication, reducing network load.
• Importance of Protocols:
  • Facilitates efficient communication within and across networks.
  • Ensures error detection and correction to maintain data integrity.
  • Supports dynamic IP address allocation and device identification.
• Key Features:
  • ARP and RARP work together for address mapping in network communication.
  • ICMP provides crucial diagnostic information for troubleshooting network issues.
  • IGMP enhances multicast communication, making it suitable for applications like live streaming.