Hello ! The presentation slides for Chapter 1 are as follows:
Summary Slides (Beginner)
http://dl.dropbox.com/u/55776142/CCNA2_Chp1_Intro_V1.ppt
Slightly Detailed Slides (Intermediate)
http://dl.dropbox.com/u/55776142/Expl_Rtr_chapter_01_Intro.ppt
Detailed Slides (Advanced)
http://ibizzone.ite.edu.sg/elearning/mod/resource/view.php?id=2650
Quiz
http://ibizzone.ite.edu.sg/elearning/mod/quiz/view.php?id=2651
Follow your skill level and go through the slides. If you feel comfortable, go through the higher level slides as well and finally, attempt the quiz.
