Page 849 - (ISC)² CISSP Certified Information Systems Security Professional Official Study Guide

Exam Essentials

Know the OSI model layers and which protocols are found in
each. The seven layers and the protocols supported by each of the
layers of the OSI model are as follows:

Application: HTTP, FTP, LPD, SMTP, Telnet, TFTP, EDI, POP3,
IMAP, SNMP, NNTP, S-RPC, and SET

Presentation: Encryption protocols and format types, such as
ASCII, EBCDICM, TIFF, JPEG, MPEG, and MIDI

Session: NFS, SQL, and RPC

Transport: SPX, SSL, TLS, TCP, and UDP

Network: ICMP, RIP, OSPF, BGP, IGMP, IP, IPSec, IPX, NAT, and
SKIP

Data Link: SLIP, PPP, ARP, L2F, L2TP, PPTP, FDDI, ISDN

Physical: EIA/TIA-232, EIA/TIA-449, X.21, HSSI, SONET, V.24,
and V.35

Have a thorough knowledge of TCP/IP. Know the difference
between TCP and UDP; be familiar with the four TCP/IP layers
(Application, Transport, Internet, and Link) and how they correspond
to the OSI model. In addition, understand the usage of the well-known
ports and be familiar with the subprotocols.

Know the different cabling types and their lengths and
maximum throughput rates. This includes STP, 10BaseT (UTP),
10Base2 (thinnet), 10Base5 (thicknet), 100BaseT, 1000BaseT, and
fiber-optic. You should also be familiar with UTP categories 1 through
7.

Be familiar with the common LAN technologies. The most

common LAN technology is Ethernet. Also be familiar with analog
versus digital communications; synchronous vs. asynchronous
communications; baseband vs. broadband communications;
broadcast, multicast, and unicast communications; CSMA, CSMA/CA,