Network+ : From Physical Topologies to Protocols and Domains

Network Topology

Bus
Ring
Star
Physical vs. Logical

Cable

Coaxial

RG-6 – Cable service, analog service, security cameras
RG-8 – 10Base5
RG-62 – TV
RG-58 – 10Base2
RG-59 – Cable service : Siamese cable: coax bonded to two conductor wires (primitive “power over ethernet” – analog)
TwinAxial Cable
MAU or MSAU
Vampire Tap

STP

Usually Token Ring

Use in high-EMI areas

UTP

10BaseT
100BaseTX
100BaseT4

This website has great wiring pinouts for T=568A & B: www.incentre.net/content/view/75/2/

Fiber Optic

10BaseFL – early fiber optic
100BaseFX

Early Gigabit Media

1000BaseCX (copper, 25 yd)
1000BaseSX (“short” fiber-optic)
1000BaseLX (“long” fiber-optic

Boxes

Repeater
Bridge
Hub
Switch
Router

IEEE

802.1x – NAC
802.2 – MAC
802.3 – Ethernet
802.5 – Token Ring
802.11 – Wireless

a
b
g
n
ac
ax
MIMO
MIMO-MU

The Data Link Layer

Logical Link Sublayer
Media Access Control Sublayer
Full vs. Half-duplex

Network Protocol Stacks

Lan Manager

Localtalk

NetBEUI/NetBIOS

IPX/SPX

AppleTalk

TCP/IP

SMB/Samba

NFS

Domains and Directories

Workgroups

NT Domains

Active Directory

Network Information System (Yellow Pages)

Novell Directory Services

Red Hat/Sun Directory Services