Name: 4/9/2018 EECE322185 S01 9) In framing, there is no need for defining the boundaries of frames. 10) In PPp is a three-way hand-shaking authentication protocol in which the password is kept secret; it is never sent online. 11) For Stop-and-Wait ARQ, for 10 data packets sent nt, acknowledgments are needed 12) What is the most widely used HDLC Data transfer mode? 13) Define piggybacking and its benefit 14) There re types of HDLC frames. 15) In an HDLC configuration, a physical station can send both commands and responses 16) What are the trade-offs between Go-Back-N ARQ and Selective-Repeat AR