CN

Basic

100

A group of computers that are connected to each other for the purpose of sharing resources is called a network.

• Resource sharing
• Communication speed
• Back up
• Scalability
• Reliability
• Software and hardware sharing
• Security

200

OSI Model

• OSI stands for “Open system interconnection model”. It has been developed by standard ISO.
• It is a seven-layer architecture where each layer has specific functionality.
• All these 7 layers work collaboratively to transmit the data from one network to another across the globe.

300

Bluetooth is an example of

Personal area network

Layers

100

Network Types

• 
  

• PAN -  Personal area network. It is mainly for personal use.
• LAN - Local area network. It is used in offices, buildings.
• MAN - Metropolitan area network. Use: Within the city
• WAN - Wide area network. Use: Used for countries or all around the world

200

The seven layers are:

• Physical layer
• Datalink layer
• Network layer
• Transport layer
• Session layer
• Presentation layer
• Application layer

300

FDDI is

Ring network

Types

100

Advantages of networking

• Open to everyone
• FIle sharing
• Security
• Easy to add a new device
• Backup and storage

200

Which one of the following is a data link protocol?

HDLC

300

Which of the following is the fastest type of computer?

Laptop

Config

100

Disadvantages

• Network device required.
• Virus attack
• Requires handler
• High-speed internet
• Server

200

Data communication system within a building or campus is

WAN

300

A device which can be connected to a network without using cable is called

Wireless device

Solution

100

Types of Protocol

• TCP/IP
• HTTP
• SMTP
• POP
• IMAP
• UDP
• PPP
• FTP

200

Which of the following terms is just the collection of networks that can be joined together?  

Intranet

300

The vast network of computers that connects millions of people all over the world is called

Internet