Data Communication Theory
What is dotted decimal notation on IPv4 addresses?
It is presentation form for the numerical data that consists of a string of decimal numbers each pair is separated by a dot. The common use is to write the numbers in the octet group based 10 (decimal) numbers separated by dots. In computer networking, Internet Protocol Version 4 addresses are commonly written using quad-dotted notation of four decimal integers, ranging from 0 to 255 each.
Explain the Peer-to Peer network and what are its advantages?
In Peer to Peer network, network hosts don’t have a specific role. They provide specific services and also consume ...view middle of the document...
* Backup for each computer has to be performed individually.
Chapter 7 –
Explain the various components of WLAN?
The various components used in WLAN are as following –
Network Interface Cards – These cards provide a physical connection to a network an the computer. It allows the computer to talk to the network to communicate with your computer. Each computer that is attached to a network requires interface chip or a card. They help computers communicate with the servers and other computers on the network.
They fit into the slots into the CPU unless they are reinstalled or integrated into the motherboard. Some are external and are attached to computers through serial or parallel ports. NIC cards for laptops are generally external. An interface cards takes the data from the PC, converts it into data “frames” that are broadcast onto the network, and sends it to another interface card. That card receives the frame, converts them into data, and sends it to that PC. These cards have around 100 – 300 feet transmission range.
Access Points (AP) - They are used instead of hubs and acts as repeaters and they must hear all computers in WLAN. They are specially configured nodes on wireless local area networks. They act as central transmitter on receiver of WLAN radio signals. Access Points used in homes and offices are usually small, dedicated hardware devices featuring a built in network adapter, antennas and radio transmitter. They support Wi-Fi wireless communication standard.
Some computers use power over Ethernet (EOP), this technology integrates power into a standard LAN infrastructure. It enables power to be provided to the network device, such as an IP phone or a network camera, using the same cable that is used for the network connection. POE technology is regulated in a standard called IEE 802.3af and is designed in a way that does not degrade the network data communication performance or decrease the network reach.
Explain Backbone Network Components?
They are as following –
Network Cable – Functions in the same way as LAN and connect various components like a modem, router and adapters. They transmit data using the...