January 2024
Intermediate to advanced
1000 pages
23h 3m
English
book
Networking Essentials Companion Guide v3: Cisco Certified Support Technician (CCST) Networking 100-150, 2nd Edition
by Cisco Networking Academy
Content preview from Networking Essentials Companion Guide v3: Cisco Certified Support Technician (CCST) Networking 100-150, 2nd Edition
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Chapter 22
Network Layer
Objectives
Upon completion of this chapter, you will be able to answer the following questions:
How does the network layer use IP protocols for reliable communications?
What is the role of the major header fields in the IPv4 packet?
What is the role of the major header fields in the IPv6 packet?
Key Terms
This chapter uses the following key terms. You can find the definitions in the Glossary.
Internet Control Message Protocol (ICMP)
Introduction (22.0)
Hi again! Bob also had to learn a lot about the network layer in his courses before he became an IT specialist. The network layer, or OSI Layer 3, provides services ...
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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.