December 2007
Intermediate to advanced
528 pages
11h 49m
English
book
Authorized Self-Study Guide Interconnecting Cisco Network Devices, Part 1 (ICND1), Second Edition
by Steve CCIE No. 6108 McQuerry
Content preview from Authorized Self-Study Guide Interconnecting Cisco Network Devices, Part 1 (ICND1), Second Edition
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Chapter 5. WAN Connections
When sites are located at different geographic locations, a WAN provides interconnections between the sites. WANs are most often charge-for-service networks, enabling you to access resources across a wide geographical area. Several types of WANs exist, including point-to-point leased lines, circuit-switched networks, and packet-switched networks. Also, many physical network devices are used in the WAN, as well as many access and encapsulation technologies such as digital ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.