December 2024
Beginner to intermediate
512 pages
13h 50m
English
book
31 Days Before your CCNA Exam: A Day-By-Day Review Guide for the CCNA 200-301 Certification Exam, 2nd Edition
by Allan Johnson
Content preview from 31 Days Before your CCNA Exam: A Day-By-Day Review Guide for the CCNA 200-301 Certification Exam, 2nd Edition
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Day 7
WAN, VPN, and IPsec
Key Topics
Today is a whirlwind review of WAN topologies, WAN connection options, virtual private networks (VPNs), and Internet Protocol Security (IPsec). Most of these exam topics are conceptual in nature and require no configuration skills, so read through this review several times and refer to your study resources for more in-depth review.
WAN Topologies
Figure 7-1 shows the four basic WAN topology options that a business can select for its WAN infrastructure:
Point-to-point: Typically uses a dedicated leased-line connection, such as T1/E1.
Hub-and-spoke: Offers ...
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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.