Communicating Packets from Web Server to Client: Protocol Functions

AC

When transmitting data over a network, the Maximum Transmission Unit (MTU) refers to the largest packet size that can be transmitted without fragmentation. If a packet is larger than the MTU, it must be fragmented into smaller packets before transmission.

In this scenario, the packets transmitted from the Web server to the client exceed the smallest MTU value on the communications path. To ensure that communication between the Web server and the client's browser is successful, two protocol functions can be used: packet segmentation and packet sequencing.

Packet segmentation involves breaking up the large packets into smaller ones that can be transmitted without fragmentation. The sender divides the packets into smaller segments that can fit within the MTU of the communications path. The receiver then reassembles the segments into the original packets.

Packet sequencing ensures that the segments are reassembled in the correct order at the receiving end. Each segment is given a sequence number to help the receiver put them back together in the correct order.

Serialized checking and parallel checking are not relevant to this scenario. Serialized checking refers to the process of verifying the integrity of a packet by checking each byte sequentially. Parallel checking refers to the use of multiple processors to check packets simultaneously.

Therefore, the correct answers to this question are A. packet segmentation and C. packet sequencing.