By Bob Vachon
Accessing the WAN
CCNA Exploration better half Guide
Accessing the WAN, CCNA Exploration significant other Guide is the reputable supplemental textbook for the having access to the WAN path within the Cisco Networking Academy CCNA Exploration curriculum model four. This path discusses the WAN applied sciences and community providers required through converged purposes in firm networks. The significant other advisor, written and edited via Networking Academy teachers, is designed as a conveyable table connection with use each time, wherever. The book’s positive aspects make stronger the fabric within the direction that will help you specialise in very important recommendations and manage your research time for checks.
New and enhanced positive factors assist you examine and achieve this course:
- Chapter targets: evaluate center suggestions by way of answering the point of interest questions indexed first and foremost of every bankruptcy.
- Key phrases: consult with the up to date lists of networking vocabulary brought and switch to the highlighted phrases in context in each one bankruptcy.
- Glossary: seek advice the all-new accomplished thesaurus with greater than 250 terms.
- Check Your figuring out questions and solution key: overview your readiness with the up-to-date end-of-chapter questions that fit the fashion of questions you spot at the on-line direction quizzes. the reply key explains each one answer.
- Challenge questions and actions: try to ace more difficult assessment questions and actions designed to arrange you for the advanced forms of questions you could see at the CCNA examination. the reply key explains every one answer.
Bob Vachon is the coordinator of the pc platforms expertise software 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 student graduate of Cambrian College.
Rick Graziani teaches machine technology and desktop networking classes at Cabrillo university in Aptos, California. Rick has labored and taught within the desktop networking and knowledge expertise box for 30 years.
How To: search for this icon to review the stairs you should discover ways to practice convinced tasks.
Packet Tracer actions: discover networking options in actions interspersed all through a few chapters utilizing
Packet Tracer v4.1 constructed by way of Cisco. The records for those actions are at the accompanying CD-ROM.
Also on hand for the gaining access to the WAN Course
Accessing the WAN,
Labs and examine advisor
The CD-ROM offers many beneficial instruments and data to aid your education:
Packet Tracer job workout files
- A consultant to utilizing a Networker’s magazine booklet
- Taking Notes: A .txt dossier of the bankruptcy pursuits
- More IT occupation Information
- Tips on Lifelong studying in Networking
This booklet is a part of the Cisco Networking Academy sequence from Cisco Press. the goods during this sequence help and supplement the Cisco Networking Academy on-line curriculum.
Read or Download Accessing the WAN CCNA Exploration Companion Guide PDF
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Extra resources for Accessing the WAN CCNA Exploration Companion Guide
Qxp 3/31/08 3:33 PM Page 11 Chapter 1: Introduction to WANs 11 The Evolving Network Model The hierarchical network model is a framework that helps you visualize and design networks. Several variations of this model exist, and it can be adapted for specific implementations. The Hierarchical Design Model Figure 1-6 shows the hierarchical network model, which is a useful high-level tool for designing a reliable network infrastructure. It provides a modular view of a network, making it easier to design and build a scalable network.
This line is much shorter than a leased line connected directly between the subscriber locations. In addition, this one line to the POP can carry several VCs, allowing it to provide connections to multiple destinations. Because it is likely that not all the VCs require maximum demand simultaneously, the capacity of the leased line can be smaller than the sum of the individual VCs. 25 ■ Frame Relay ■ ATM WAN Connection Options This section covers various WAN connection options, including private dedicated links, private switched links, and public connection options using the Internet.
Video and voice traffic do not have to wait for a larger data packet to be transmitted. 25. Furthermore, the ATM cell has at least 5 bytes of overhead for each 48-byte payload. When the cell is carrying segmented network layer packets, the overhead is higher, because the ATM switch must be able to reassemble the packets at the destination. A typical ATM line needs almost 20 percent more bandwidth than Frame Relay to carry the same volume of network layer data. ATM was designed to be extremely scalable.