... C, D, E 10 . A, C, D 11 . B, C, D 12 . E 13 . A and B 14 . B 15 . B and C 16 . A and D 17 . A, B, E 18 . C 19 . A, B, C20. D 21. C and D22. C and E23. C24. B 15 0x01x.book Page 612 Monday, June 18 , 2007 ... end. One may end well ahead of the other. 15 0x01x.book Page 605 Monday, June 18 , 2007 8:52 AMChapter 16 617 8.C9. B 10 . A 11 . A 12 . CQ&A 1. Stage 1 is Group Level Authentication, which represents ... next-hop device.Chapter 11 “Do I Know This Already?” 1. A2. B3. B4. A5. C6. B7. C8. C9. B 10 . C 11 . B 12 . B 15 0x01x.book Page 608 Monday, June 18 , 2007 8:52 AM 610 Appendix A: Answers...