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CCENT Exam Cram (Exam 640-822) by Andrew Whitaker, Michael Valentine

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Appendix . Exam Cram: The CCENT Cram Sheet

This Cram Sheet contains key facts about the CCENT exam. Review this information as the last thing you do before you enter the testing center, paying special attention to those areas in which you feel that you need the most review. You can transfer any of these facts from your head onto a blank sheet of paper immediately before you begin the exam.

OSI Model

Layer

Name

Protocols and Devices

PDU

7

Application

FTP, Telnet, TFTP, SMTP, POP3, SNMP, DNS, NTP, HTTP, HTTPS, DHCP

Data

6

Presentation

ASCII, .jpg, .doc

Data

5

Session

RPC, SQL/Telnet (for login only)

Data

4

Transport

TCP—Connection-oriented, reliable using PAR

UDP—Connectionless, unreliable, uses upper layer protocols for reliability

Segment

3

Network

IP, ICMP, RIP, IGRP, ...

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