29 29 votes The address resolution protocol (ARP) is used for: Finding the IP address from the DNS Finding the IP address of the default gateway Finding the IP address that corresponds to a MAC address Finding the MAC address that corresponds to an IP address Computer Networks gatecse-2005 computer-networks normal network-protocols + – Kathleen 12.3k views answer comment Share Follow Print See all 12 Comments 12 12 Comments reply Aditi Dan commented Dec 23, 2014 i moved by Hira Thakur Nov 2, 2025 reply Follow flag ans d) 9 9 replyShare Puja Mishra commented Jan 31, 2017 reply Follow flag U should explain ur answers... 12 12 replyShare Chhotu commented Dec 18, 2017 reply Follow flag One additional question --> Just think "IP and Port No" are enough to identify a process on a host then what is the requirement of ARP ? 1 1 replyShare Mk Utkarsh commented Jan 5, 2018 reply Follow flag and RARP does option C? 1 1 replyShare minal commented Jan 17, 2018 reply Follow flag at router we dont know port number rt ... so ip+port could not identify RARP Is option c 3 3 replyShare meghna commented May 29, 2018 reply Follow flag which protocol can be used for getting default gateway's IP??? 2 2 replyShare neel19 commented Oct 20, 2020 reply Follow flag ICMP protocol – Address Mask Request. http://www.networksorcery.com/enp/protocol/icmp/msg17.htm 3 3 replyShare ritiksri8 commented May 24, 2024 reply Follow flag ARP 0 0 replyShare P0535_Yedidyah_Sagar commented Sep 12, 2025 reply Follow flag @meghnaI think DHCPhttps://www.geeksforgeeks.org/computer-networks/dynamic-host-configuration-protocol-dhcp/ 1 1 replyShare raghu_46 commented Nov 24, 2025 reply Follow flag Both BOOTP and DHCP used for getting default gateway IPs and IP and subnet mask . But drawbacks of BOOTP is we need setup an relay agent for every subnet and multiple realy agents can be connected to BOOTP server which gives IP address and , subnet mask and default gateway. Another drawback is BOOTP is static . So we use DHCP in current days which is dynamically allocated IP ( a restricted time bound for each IP ) 1 1 replyShare Umesh Shelke commented Mar 9 reply Follow flag A. Finding the IP address from the DNS $\Longrightarrow$ $DNS$ B. Finding the IP address of the default gateway $\Longrightarrow$ $DHCP$ C. Finding the IP address that corresponds to a MAC address $\Longrightarrow$ $RARP$ D. Finding the MAC address that corresponds to an IP address $\Longrightarrow$ $ARP$ 3 3 replyShare Sandy_05 commented Jun 25 reply Follow flag DHCP is used to find the IP address of default gatewayref: forouzen book 0 0 replyShare Please log in or register to add a comment.
Best answer 27 27 votes The address resolution protocol (ARP) is a protocol used by the Internet Protocol (IP) specifically IPv4, to map IP network addresses to the hardware addresses used by a data link protocol. So option D is correct. Ref: http://www.erg.abdn.ac.uk/users/gorry/course/inet-pages/arp.html Brij Mohan Gupta answered May 15, 2017 • edited Sep 15, 2023 by Pranavpurkar Brij Mohan Gupta comment Share Follow 0 reply Please log in or register to add a comment.
0 0 votes d.. finding the MAC address that correspondes to an IP address Priyanka Agarwal answered May 21, 2017 Priyanka Agarwal comment Share Follow See 1 comment 1 1 comment reply vxi lin commented Aug 13, 2025 reply Follow flag why is this marked as wrong? 1 1 replyShare Please log in or register to add a comment.
0 0 votes i think C is the correct answer Uday_yadav 1 answered Jan 10 1 flag: ✌ Low quality (Mayank_Pant “wrong answer”) Uday_yadav 1 comment Share Follow 0 reply Please log in or register to add a comment.
0 0 votes COMMENELOW IF YOU HAVE ANY DOUBTT B akshay_123 answered Apr 15 akshay_123 comment Share Follow 0 reply Please log in or register to add a comment.
