Most search engines enable you to search for web sites that have been modified recently. this feature is usually included as a filter option on the sites' search pages.

the only way i would see could be an autoclicker type software. but that is very time consuming.

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.