By Bob Vachon
Gaining access to the WAN CCNA Exploration significant other consultant Bob Vachon Rick Graziani gaining access to the WAN, CCNA Exploration better half advisor is the respectable supplemental textbook for the getting access to the WAN direction within the Cisco Networking Academy CCNA Exploration curriculum model four. This path discusses the WAN applied sciences and community providers required by way of converged functions in firm networks. The better half consultant, written and edited by way of Networking Academy teachers, is designed as a transportable table connection with use every time, anyplace. The book’s positive factors toughen the fabric within the path that will help you concentrate on very important innovations and manage your examine time for tests. New and superior beneficial properties assist you research and achieve this direction: bankruptcy ambitions: evaluate center strategies by means of answering the point of interest questions indexed in the beginning of every bankruptcy. key phrases: confer with the up to date lists of networking vocabulary brought and switch to the highlighted phrases in context in each one bankruptcy. word list: seek advice the all-new accomplished word list with greater than 250 phrases. cost Your realizing questions and solution key: assessment your readiness with the up-to-date end-of-chapter questions that fit the fashion of questions you notice at the on-line direction quizzes. the reply key explains every one resolution. problem questions and actions: attempt to ace more difficult assessment questions and actions designed to organize you for the advanced varieties of questions it's possible you'll see at the CCNA examination. the reply key explains every one resolution. Bob Vachon is the coordinator of the pc platforms expertise application and teaches networking infrastructure classes at Cambrian university in Sudbury, Ontario, Canada. Bob has labored and taught within the desktop networking and data know-how box for 25 years and is a pupil graduate of Cambrian College. Rick Graziani teaches desktop technological know-how and machine networking classes at Cabrillo university in Aptos, California. Rick has labored and taught within the computing device networking and data know-how box for 30 years. how you can: search for this icon to review the stairs it's good to learn how to practice definite initiatives. Packet Tracer actions: discover networking strategies in actions interspersed all through a few chapters utilizing Packet Tracer v4.1 built by way of Cisco. The documents for those actions are at the accompanying CD-ROM. additionally to be had for the getting access to the WAN direction getting access to the WAN, CCNA Exploration Labs and learn consultant ISBN-10: 1-58713-201-X ISBN-13: 978-1-58713-201-8 better half CD-ROM The CD-ROM presents many beneficial instruments and knowledge to aid your schooling: Packet Tracer task workout documents A consultant to utilizing a Networker’s magazine ebook Taking Notes: A .txt dossier of the bankruptcy pursuits extra IT profession info tips about Lifelong studying in Networking This publication is a part of the Cisco Networking Academy sequence from Cisco Press. the goods during this sequence aid and supplement the Cisco Networking Academy on-line curriculum.
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Additional info for Accessing the WAN, CCNA Exploration Companion Guide
To illustrate, we’ll use a fictitious company called Span Engineering as an example. You’ll watch how its network requirements change as the company grows from a small local business into a global enterprise. Small Office (Single LAN) Span Engineering, an environmental consulting firm, has developed a special process for converting household waste into electricity. It is developing a small pilot project for a municipal government in its local area. The company, which has been in business for four years, has grown to include 15 employees: six engineers, four computer-aided drawing (CAD) designers, two senior partners, a receptionist, and two office assistants.
The server farm contains e-mail and corporate servers providing application, file, print, e-mail, and Domain Name System (DNS) services to internal users. The enterprise campus module describes the connections between users, the campus network, the server farm, and the Enterprise Edge modules. Enterprise Edge Architecture This module, as illustrated in Figure 1-9, often functions as a liaison between the campus module and the other modules in the Enterprise Architecture. It offers connectivity to voice, video, and data services outside the enterprise.
Qxp 34 3/31/08 3:33 PM Page 34 Accessing the WAN, CCNA Exploration Companion Guide ■ Primary Rate Interface (PRI): ISDN is also available for larger installations. 544 Mbps. This includes some additional overhead for synchronization. 048 Mbps, including synchronization overhead. In North America, PRI corresponds to a T1 connection. The PRI rate of lines outside North America corresponds to an E1 or J1 connection. Figure 1-23 illustrates the various differences between ISDN BRI and PRI lines. 048 Mbps (Includes Sync) For WAN links, which require low bandwidth, the BRI ISDN can provide an ideal connection mechanism.