The performance of the network at a medium-sized business has slowed to the point that users
are complaining. In order to address the problem, the network administrator needs to determine
what the users might be doing to cause the slowdown. Which two types of network services or
applications are the most likely cause of the slowdown? (Choose two.)

A.
online auction sites

B.
instant messaging and chat room services

C.
social networking web sites

D.
blogs and other online browsing

E.
PC-based VoIP services

F.
online video sites

Explanation: