a. What is VoIP? b. Distinguish between IP telephones and soft phones. c. List, in order of appearance at the receiver, the headers and message of a packet carrying voice between phones. d. What does...

a. What is VoIP? b. Distinguish between IP telephones and soft phones. c. List, in order of appearance at the receiver, the headers and message of a packet carrying voice between phones. d. What does RTP add to compensate for the limitations of UDP?

a. What is eavesdropping? b. Why can DoS attacks be successful even if they only increase latency slightly? c. Why is caller impersonation especially dangerous in VoIP? d. Why are hacking and malware dangerous in VoIP?