January 2013
Beginner to intermediate
576 pages
14h 1m
English
book
CCENT Cisco Certified Entry Networking Technician Study Guide: (ICND1 Exam 640-822), 2nd Edition
by Todd Lammle
Content preview from CCENT Cisco Certified Entry Networking Technician Study Guide: (ICND1 Exam 640-822), 2nd EditionBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 1: Internetworking
Written Lab 1.1
- The Application layer is responsible for finding the network resources broadcast from a server and adding flow control and error control (if the application developer chooses).
- The Physical layer takes frames from the Data Link layer and encodes the 1s and 0s into a digital signal for transmission on the network medium.
- The Network layer provides routing through an internetwork and logical addressing.
- The Presentation layer makes sure that data is in a readable format for the Application layer.
- The Session layer sets up, maintains, and terminates sessions between applications.
- PDUs at the Data Link layer are called frames. As soon as you see frame in a question, you know the answer.
- The Transport layer ...
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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.
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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.