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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.
Pin 3 and 6 are connected to the same twisted pair wire.
Pin 4 and 5 are connected to the same twisted pair wire.
Pin 7 and 8 are connected to the same twisted pair wire.
7-
What is the wiring layout of a crossover cable?
Pin 1 to Pin 3
Pin 2 to Pin 6
Pin 3 to Pin 1
Pin 4 to Pin 4
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
Pin 5 to Pin 5
Pin 6 to Pin 2
Pin 7 to Pin 7
Pin 8 to Pin 8
1-Orange/White 2-Orange
3-Green/White 6-Green
4-Blue/White
5-Blue
7-Brown/White 8-Brown
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Summary of Contents for CNET CN40BC
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Page 1: Networking Basics
Networking Basics 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. -
Page 2: What Is A Router
Routers are network devices (layer III) that are used for connecting different networks and are responsible for routing packets from source to destination based on their routing table. What does NIC stands for? Network Interface Card. What is a MAC address? MAC address is a unique 6byte number that is burned into each card when it is manufactured. - Page 3 These addresses start from 128 to 191. Class C addresses use the first three octets foe Net ID and the last 8 bits are for host identification. This range of IPs start from 192 to 223. What are CNet’s Network adapter cards? Pro200 PCI 10/100Mbps...
- Page 4 Scenario#1: There is only one PC to connect to the Internet. In this case, you need the network card and also the Cable/DSL modem that is provided by your Internet Service Provider and a connecting cable (cable type needs to be verified with the ISP/modem manufacturer.