Networks

Networks

1. Types of network

   • LAN
     • Local area network
       • All connected computers are in the same area
   • WAN
     • Wide area network
       • All connected computers are over a wide range of areas

2. Advantages

   • Share files
     • Files will show up on all computers
   • Share resources
     • Share resources like internet connection and printers
   • Share logins
     • Same logins and passwords on all connected computers

3. Disadvantages

   • Cost
     • Cables, wires and equipment is very expensive
   • Increased risk
     • If a virus got out it would spread to all connected computers
   • Difficulty
     • Expertise are needed
       • You may need professional help

4. Topology

   • an arrangement of computers and other elements of a network
   • bus topology
     • a single cable connecting all computers
       • advantage- cheap to install disadvantage- high chance of collisions
   • ring topology
     • computers are connected to each other in a ring
       • advantage- no collisions disadvantage- still high chance of failure
   • star topology
     • all computers are connected to a central switch
       • advantage- no collisions and is fast disadvantages- expensive depends on a switch

5. IP Address

   • an IP Address is a unique value given to a network computer
     • the school's IP Address: 86.188.242.210 this computers IP Address: 10.1.17.0
       • Disadvantage of having an IP address is when it comes to networking it can be used by someone other than the person who registered it. For example, a company could use an IP address to identify a customer on the internet, and then sell that customer’s data to other companies
   • unique addresses are assigned to individual businesses and houses advantage: these houses and businesses run their own mini network with different IP Addresses.

6. The official definition of IPV6 is: “ Internet Protocol version 6 (IPv6) is the most recent version of the Internet Protocol (IP), the communications protocol that provides an identification and location system for computers on networks and routes traffic across the Internet.”

   • It was created to solve the address exhaustion also known as IPV4