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Computer Science Engineering (CSE) Exam  >  Computer Science Engineering (CSE) Questions  >  Which protocol is used to convert IP addresse... Start Learning for Free
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Which protocol is used to convert IP addresses to MAC address?
  • a)
    IP
  • b)
    RARP
  • c)
    In ARP
  • d)
    ARP
Correct answer is option 'D'. Can you explain this answer?
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Which protocol is used to convert IP addresses to MAC address?a)IPb)RA...
ARP is address resolution protocol used to find MAC address for corresponding IP address.
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Which protocol is used to convert IP addresses to MAC address?a)IPb)RA...
Answer:
The protocol used to convert IP addresses to MAC addresses is ARP (Address Resolution Protocol). ARP is a communication protocol that is used to map an IP address to a physical (MAC) address on a local network.

Explanation:
When a device wants to communicate with another device on the same local network, it needs to know the MAC address of the destination device. However, devices use IP addresses to communicate with each other at the network layer.

Here is how ARP works to convert IP addresses to MAC addresses:

1. ARP Request:
When a device wants to know the MAC address corresponding to a specific IP address, it first sends an ARP request to the local network. The ARP request has the IP address of the desired device and the MAC address of the sending device.

2. Broadcast:
The ARP request is broadcasted to all devices on the local network. This is because the sending device does not know the MAC address of the desired device, so it sends the request to all devices.

3. ARP Reply:
The device with the IP address mentioned in the ARP request responds with an ARP reply. The ARP reply contains the MAC address of the responding device.

4. MAC Address Mapping:
Upon receiving the ARP reply, the sending device updates its ARP cache with the IP-to-MAC address mapping. The ARP cache is a table that keeps track of the IP-to-MAC address mappings for faster future communication.

Benefits of ARP:
- ARP allows devices to dynamically discover the MAC addresses of other devices on the local network, eliminating the need for manual configuration.
- It enables devices to communicate with each other using IP addresses while relying on MAC addresses for actual data transmission.
- ARP helps in optimizing network performance by reducing the time required to resolve IP-to-MAC address mappings.

Conclusion:
ARP is the protocol used to convert IP addresses to MAC addresses. It allows devices on a local network to dynamically discover and map IP addresses to MAC addresses for efficient communication. By using ARP, devices can communicate with each other using IP addresses while relying on MAC addresses for actual data transmission.
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Which protocol is used to convert IP addresses to MAC address?a)IPb)RARPc)In ARPd)ARPCorrect answer is option 'D'. Can you explain this answer?
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