Switching

Host B receives an ARP request frame that includes the IP address of Host A. What will Host B do with that information?

G Gurpreet Singh April 22, 2024 1 min read
host-b-receives-an-arp-request-frame-that-includes-the-ip-address-of-host-a_optimized.-what-will-host-b-do-with-that-information

Host B receives an ARP request frame that includes the IP address of Host A. What will Host B do with that information? ( Choose Two)

  • Record the IP address and MAC address of Host A in its own ARP cache
  • Send an ARP reply as a unicast back to Host A
  • Send out an ARP request as a broadcast to the destination address ff:ff:ff:ff:ff:ff
  • Associate the IP address with a port and a VLAN

Explanation

The correct actions that Host B will take with the information in the ARP request frame are:

“Record the IP address and MAC address of Host A in its own ARP cache.”

When Host B receives an ARP request frame that includes the IP address of Host A, it will record the IP address and MAC address of Host A in its own ARP cache. This will allow Host B to quickly look up the MAC address of Host A in the future when it needs to send data to Host A.

“Send an ARP reply as a unicast back to Host A.”

In response to the ARP request, Host B will also send an ARP reply as a unicast back to Host A. This reply will include the IP and MAC address of Host B, and it will allow Host A to update its own ARP cache with the necessary information.

Host B will not send out an ARP request as a broadcast or associate the IP address with a port and VLAN. These actions are not part of the ARP process.

GU
Written by

Gurpreet Singh

Hey! I"m Gurpreet Singh and I Have 7+ Years of experience in the Network & Security Domain as well as the Cloud Infra Domain. I am Certified with Cisco ( CCNA ), CheckPoint ( CCSA ), 1xAWS, 3xAZURE, and 3xNSE. So I love to share my tech knowledge with you.

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