A tester is attempting to capture and analyze the traffic on a given network and realizes that the network has several switches. What could be used to successfully sniff the traffic on this switched network? (Choose three.)

Susan has attached to her company's network. She has managed to synchronize her
boss's sessions with that of the file server. She then intercepted his traffic destined for the server, changed it the way she wanted to and then placed it on the server in his home directory. What kind of attack is Susan carrying on?

What is the best means of prevention against viruses?

How does a denial-of-service attack work?

Bob is going to perform an active session hijack against Brownies Inc. He has found a target that allows session oriented connections (Telnet) and performs the sequence prediction on the target operating system. He manages to find an active session due to the high level of traffic on the network. What is Bob supposed to do next?