In what type of cluster does every server perform useful work so that if one fails, the remaining servers take on the additional load?

(http) hyper text transfer protocol

which means its an input that allows the "site" to connect with severs.

solution:

this situation is called an ip conflict.

data from a server is sent in small bits called packets. in an ip conflict, some packets will end up in one computer while some other packets will end up in another computer.

so…overall none of the computers get the data as the original message or picture being sent by the server cannot be retrieved with only half the packets. so it will show up as an error.

thus the final answer is d.