Prove that K i=1 x?Ci (x ? mi)(m ? mi) = 0. This fact was used in the proof that TSS = SSE + SSB on page 557.

In Project 2013, a task ________ can be included in the entry table when more information needs to be added to a task for clarification

Fill in the blank(s) with correct word

____ attacks send a large quantity of packets to a server so that resources are overutilized.?

A. ?Defaced pages B. ?Intrusion C. ?Errors and omissions D. ?Denial-of-service