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 28
IPv4 Addressing
Key Topics
Today we focus on reviewing the structure of an IPv4 address, the classes, and private and public IPv4 addresses. Then we turn our focus to IPv4 subnetting.
By now, you should be able to subnet quickly. For example, you should be able to quickly answer a question such as the following: If you are given a /16 network, what subnet mask would you use to maximize the total number of subnets while still providing enough addresses for the largest subnet with 500 hosts? The answer is 255.255.254.0, or /23. This gives you 128 subnets with 510 usable hosts per subnet. You should be able to quickly ...
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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.