World of Computer Networking Your CCNA start - Address Resolution Protocol (ARP) Request and Response

The video tutorial explains the Address Resolution Protocol (ARP) used to map IP addresses to MAC addresses in a local network. It describes the process of encapsulation, ARP requests, and responses, highlighting how a host determines the MAC address of a destination host. The tutorial uses diagrams to illustrate the communication path and the two-step ARP process, including broadcast requests and unicast responses. The session concludes with a preview of analyzing ARP requests and responses using Wireshark.

What is the primary purpose of the ARP protocol?

• To resolve IP addresses from MAC addresses

• To resolve MAC addresses from IP addresses

• To establish a secure connection between hosts

• To encrypt data packets

In the ARP request process, what type of address is used to send the request?

• Anycast MAC address

• Broadcast MAC address

• Multicast MAC address

• Unicast MAC address

What happens when a device receives an ARP request?

• It ignores the request if the IP address does not match

• It forwards the request to the router

• It sends a broadcast response

• It sends a unicast response if the IP address matches

How does the ARP response differ from the ARP request?

• The response is sent to a broadcast address

• The response is sent to a unicast address

• The response is encrypted

• The response contains the IP address of the router

What information does the ARP response provide to the requesting computer?

• The MAC address of the destination host

• The subnet mask of the network

• The default gateway address

• The IP address of the destination host

After the ARP process, what is the computer able to do?

• Send the packet to the router

• Perform encapsulation of the packet on the data link layer

• Change its IP address

• Encrypt the data packet

What is the role of the ARP protocol in data transmission?

• To encrypt data packets

• To resolve domain names

• To enable encapsulation on the data link layer

• To manage network traffic