ccna 1 audiobook

ccna 1 audiobook.Point-to-Point WANsLeased line WANs (also known as serial links) require less thought than many other topics, at least within the requirements of the CCENT and CCNA exams. This simplicity has led to a very brief discussion of leased lines on the Cisco exam (ICND1), with leased lines only being included as part of a broader discussion of IP routing.This chapter ultimately takes a deeper look at leased line WANs than was previously available. This chapter briefly repeats some of the concepts of leased lines from ICND1 as a basis for discussing other concepts. More importantly, this chapter focuses on the configuration, verification, and troubleshooting steps for leased lines using Advanced Data Link (HDLC) and Point-to-Point Protocol (PPP).This chapter divides the content into three main sections. The first section discusses leased line WANs using HDLC in terms of reviewing and adding physical link details and HDLC (and related) configurations. the second section discusses PPP, the data link layer protocol that can replace HDLC, focusing on concepts and configuration methods. The final section discusses the typical underlying problems with serial links and how to find out where the problems lie.12.1 "Do I already know this?" Mini-testTable 12-1 Chapter Basics and Related Test QuestionsLeased Line WAN with HDLC 1.3Leased Line with PPP WAN 4 ~ 6Serial Link Troubleshooting 7(1) Which device is typically connected to the 4 wires provided by the telephone company during the wiring of a leased line?