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What is the primary function of the ARP protocol?

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Question: What is the primary function of the ARP protocol?

Options:

  1. To resolve IP addresses to MAC addresses
  2. To assign IP addresses
  3. To manage routing tables
  4. To control error detection

Correct Answer: To resolve IP addresses to MAC addresses

Solution: 

ARP (Address Resolution Protocol) is used to resolve IP addresses to their corresponding MAC addresses on a local network.

What is the primary function of the ARP protocol?

Practice Questions

Q1
What is the primary function of the ARP protocol?
  1. To resolve IP addresses to MAC addresses
  2. To assign IP addresses
  3. To manage routing tables
  4. To control error detection

Questions & Step-by-Step Solutions

What is the primary function of the ARP protocol?
  • Step 1: Understand that devices on a local network communicate using two types of addresses: IP addresses and MAC addresses.
  • Step 2: Know that an IP address is like a home address for a device on the internet, while a MAC address is like a unique ID for the device's network interface.
  • Step 3: Realize that when a device wants to send data to another device, it needs to know the MAC address of the destination device, but it may only have the IP address.
  • Step 4: Learn that ARP (Address Resolution Protocol) is the tool used to find out the MAC address that corresponds to a given IP address.
  • Step 5: Understand that ARP sends a request on the local network asking, 'Who has this IP address? Please send me your MAC address.'
  • Step 6: Know that the device with the matching IP address responds with its MAC address, allowing the original device to send data to it.
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