COMPUTER EDUCATION 10

Network Address - it is more commonly known as IP address. -it is the numeric address of a computer connected to the network. It can be compared to the physical address that we use for our homes which uniquely identifies it from the rest of the homes in our neighbourhood, town, city, province, country and the whole wide world. is a set of numbers, called as “octets” or “dotted decimal” notation , that identifies any network device. Example: 172.16.254.1 IP Versions 1. IPv4 – IP version 4: is the standard version 2. IPv6 – IP version 6: is the advanced version Binary Digits 128 64 32 16 8 4 2 1 Classes of IP Address Class A - 1 to 126 Class B - 128 to 191 Class C - 192 to 223 Class D - 224 to 239 Class E - 240 to 255 Note: 127 - Loop back function of a network. Class D - is for multicast. Class E - reserved for future or experimental purposes. Typical home networks use IP addresses that start with 192.168. IP address such a...

STRAIGHT-THROUGH VS. CROSSOVER Straight-Through      A straight through cable is a type of twisted pair cable that is used in local area networks to connect a computer to a network hub such as a router. This type of cable is also sometimes called a patch cable and is an alternative to wireless connections where one or more computers access a router through a wireless signal. On a straight through cable, the wired pins match. Straight through cable use one wiring standard: both ends use T568A wiring standard or both ends use T568B wiring standard. The following figure shows a straight through cable of which both ends are wired as the T568B standard. CROSSOVER      A crossover Ethernet cable is a type of Ethernet cable used to connect computing devices together directly. Unlike straight through cable, the RJ45 crossover cable uses two different wiring standards: one end uses the T568A wiring standard, and the other end uses the T568B wir...

Twisted pair cable, coaxial cable and fiber optic cable are the three main types of network cables used in communication systems. Each of them is different and suitable for various applications. Understanding the differences between the three will shed light on how data travels through each cable, which ultimately affects your connection and things like speed, latency, security, cost, etc. Here is a general breakdown of the three different types of cable systems and what they are capable of: TYPES OF CABLE 1. Twisted Pair Cable - Twisted pair cables are quite literally a pair of insulated wires that are twisted together to help reduce noise from outside sources. While this does help some, these cables are still very susceptible to outside noise. Twisted pair cables are the most cost-effective option of the three but that also brings about lower bandwidth and high attenuation.  2 types of Twisted Pair Cable Shielded Twisted Pair - Shielded twist...