During encapsulation of an HTTP request, what is added to the address field of a frame?

During encapsulation of an HTTP request, what is added to the address field of a frame?

• A. The IP address of the client.
• B. The MAC address of the default gateway.
• C. The DNS address of the web server.
• D. The physical address of the source device.

Answer: (B)

In the process of encapsulation for an HTTP request, the address field of a frame is populated with the MAC address of the destination device that the request is intended for. This frame is part of the data link layer encapsulation, which requires the physical (or MAC) addresses of the devices on the same local area network (LAN) to facilitate communication. In this scenario, when a client sends an HTTP request, it's necessary for the data link layer frame to contain the MAC address of the device that is the next hop for the data to reach its ultimate destination. This could be either the MAC address of the destination web server (if it's directly on the local network) or the MAC address of the default gateway (like a router) if the web server is on a different network. If the request needs to go through a router (the default gateway), then the frame will have the MAC address of that router in the address field. Therefore, the inclusion of the MAC address of the default gateway aligns with the requirement of routing packets when navigating away from the local network toward the server. Having the MAC address of the source device, the client's IP address, or the DNS address of the web server does not fulfill the addressing requirement for data link layer encaps

In the process of encapsulation for an HTTP request, the address field of a frame is populated with the MAC address of the destination device that the request is intended for. This frame is part of the data link layer encapsulation, which requires the physical (or MAC) addresses of the devices on the same local area network (LAN) to facilitate communication.

In this scenario, when a client sends an HTTP request, it's necessary for the data link layer frame to contain the MAC address of the device that is the next hop for the data to reach its ultimate destination. This could be either the MAC address of the destination web server (if it's directly on the local network) or the MAC address of the default gateway (like a router) if the web server is on a different network.

If the request needs to go through a router (the default gateway), then the frame will have the MAC address of that router in the address field. Therefore, the inclusion of the MAC address of the default gateway aligns with the requirement of routing packets when navigating away from the local network toward the server.

Having the MAC address of the source device, the client's IP address, or the DNS address of the web server does not fulfill the addressing requirement for data link layer encaps