What is a computer network?
- A computer network is a collection of interconnected computers.
- Two computers are said to be interconnected if they are capable of sharing hardware, software and exchanging information.
Name the architectures that are involved in network design?
- Peer to peer (P2P)
- Client – Server
- Hybrid of client-server and P2P
List the network components used to connect computers.
- Network interface card (NIC) -A network card generally connected to or part of motherboard of a computer.
- Network medium – A cable connected to NIC.
- Interconnecting device – It can be hubs, modems, switches, routers, and wireless access points.
What are the advantages for Networking?
Advantages for Networking are:
- Resource sharing
- Communication medium
- Central Storage of data
- Data Sharing
- Cost Effective
What do you mean by a backbone network?
- A network that is used as a backbone to connect the several LAN’S together to form a WAN
- FDDI (Fiber Distribute Data Interface) is such a network
- FDDI is a high performance fiber optic token ring LAN running at 100 Mbps over distances up to 200 kms with up to 1000 stations connected.
Define the following :
[Data channel, Baud, bps, Bps and Bandwidth]
Data channel :
- A data channel is a medium used to carry information or data from one point to the other
Baud :
- Baud is the unit of measurement for the information carrying capacity of a communication channel.
- lt is synonymous with bits per second.
bps : bits per second.
- It refers to a thousand bits transmitted per second.
Bps : Bytes per second.
- lt refers to a thousand bytes transmitted per second.
Bandwidth :
- It refers to the difference between the highest and lowest frequencies of a transmission channel
- This term is also sometimes used to refer to the amount of information travelling through a single channel at any one point of time
What factors affect data transmission?
Several factors affect the data transmission, they are
- Transmission rate, Frequency and bandwidth
- Line Configurations, Point to point versus multipoint
- Serial and Parallel transmission
- Direction of transmission-Simplex, Half Duplex, and Full Duplex
- Transmission Mode-Asynchronous and synchronous.
- Circuit switching and Packet switching Multiplexing
- Protocols
List any three applications of networking.
Application of Networking:
- Sharing of Data and Resources
- Access to remote database Communication facilities
What is a MAC address?
- It refers to the physical address assigned by the NIC manufacturer
- A MAC address is a 6 byte address with each byte separated by a colon.
- For example: 22-84 02:6C 2E.F1. The first three bytes refer to manufacturer ID and last three card numbers.
List the different switching techniques used in networking?
- Circuit Switching
- Message Switching
- Packet Switching
Name the different types of transmission media commonly used in networking?
- Twisted pair cable
- Co-axial Cables
- Optical
- Infrared
- Radio Waves
- Microwave Communication Satellite Link