Networking Basics
1-
What is a network?
A network is a group of computers, printers, and other devices that are connected and
communicate wit each other. The medias used in networking can be copper wire , fiber
optics or radio waves. The three type of networks are Local Area, Metropolitan and
Wide Area Network which are commonly called LAN, MAN and WAN.
2-
What is a LAN topology?
LAN topologies define the manner in which network devices are organized.
3-
What is the definition of Ethernet?
Ethernet is the most widely used network standard. Specified in, IEEE802.3, Ethernet
was originally developed by Xerox and then developed further by Xerox, DEC, and Intel.
4-
What does UTP stand for?
Unshielded Twisted Pair and is the type of cable used in Ethernet networks.
5-
What is a CAT5 cable?
CAT 5 is the highest quality UTP cable and is tested for conductivity over a 100MHz
signal. The Cat5 cable is not a guarantee that the cable is 100% compliant to the
standards especially if it is not properly connected to the RJ-45 connector/jack.
6-
What are the numerical/color wiring layout of a straight-through
CAT5 cable?
Pin 1 and 2 are connected to the same twisted pair wire. 1-Orange/White 2-Orange
Pin 3 and 6 are connected to the same twisted pair wire. 3-Green/White 6-Green
Pin 4 and 5 are connected to the same twisted pair wire. 4-Blue/White 5-Blue
Pin 7 and 8 are connected to the same twisted pair wire. 7-Brown/White 8-Brown
7-
What is the wiring layout of a crossover cable?
Pin 1 to Pin 3 Pin 5 to Pin 5
Pin 2 to Pin 6 Pin 6 to Pin 2
Pin 3 to Pin 1 Pin 7 to Pin 7
Pin 4 to Pin 4 Pin 8 to Pin 8
8-
What is Token Ring?
The token ring is the second most widely-used LAN protocol after Ethernet.
A token ring network is a local area network in which all computers are connected in a ring or star
topology and a token-passing scheme is used in order to prevent the collision of data between
