Tuesday, August 9, 2022

Difference between Switch and Router

 

Switch:

1. Switch is a networking device.

2. Switch is a data link layer device.

3. Switch works in LAN (Local Area Network)

4. Switch works in same network.

5. Switch is an intra-network device

6. Switch use MAC (Media Access Control) address

7. Switch is an intelligent device

8. Data use as a frame format in switch.

9. Switch  use CAM (Content Accessable Memory) table

10. Switch usally used in 8/16/24/48 ports

11. Switch is a multiport device.

12. Switch is a full duplex device

13. No collision occurs in switch.

14. In switch every port has its collision table.

15. Switch support advanced features like VLAN, STP, RSTP etc.

16. Switch is faster than router.

17. Switch support 10 Mbps to 1 Gbps speed.



 Router:

1. Router is a networking device.

2. Router is a Network Layer device.

3. Router works for WAN (Wide Area Network)

4. Router works for communication between different network.

5. Router is an inter network device.

6. Router use IP address

7. Data use as a packet in Router.

8. Router perform routing operation

9. Router use routing table.

10. Router usally support 2/4/8 etc ports

11. Router is slower than switch.

12. Router support 10 Mbps to 100 Mbps speed

Difference between Hub and Switch

 

HUB:

1. Hub is a network device

2. Hub is a Physical Layer device.

3. Hub is a multiport device.

4. Signal travel in the form of bits in Hub.

5. Hub support electric signal

6. Hub is a half duplex device

7. Hub is an unintelligent device

8. Hub does not learn or store MAC address

9. Collision occurs commonly in Hub

10. Hub support only single collision dimension

11. Hub does not support Advanced features like VLAN, STP, RSTP etc.




Switch:

1. Switch is a networking device.

2. Switch is a data link layer device.

3. Switch works in LAN (Local Area Network)

4. Switch works in same network.

5. Switch is an intra-network device

6. Switch use MAC (Media Access Control) address

7. Switch is an intelligent device

8. Data use as a frame format in switch.

9. Switch  use CAM (Content Accessable Memory) table

10. Switch usally used in 8/16/24/48 ports

11. Switch is a multiport device.

12. Switch is a full duplex device

13. No collision occurs in switch.

14. In switch every port has its collision table.

15. Switch support advanced features like VLAN, STP, RSTP etc.

16. Switch is faster than router.

17. Switch support 10 Mbps to 1 Gbps speed.

Network Devices

      

Hardware devices that are used to connect computers, printers, fax machines and other electronic devices to a network are called network devices. These devices transfer data in a fast, secure and correct way over same or different networks. Network devices may be inter-network or intra-network. Some devices are installed on the device, like NIC card or RJ45 connector, whereas some are part of the network, like router, switch, etc.

Types of network devices

·         Hub

·         Switch

·         Router

·         Bridge

·         Gateway

·         Modem

·         Repeater

·         NIC Card

Introduction to Network - Class 12 CS/IP



Computer Network


  • Computer network is a technology to connect hardware, software for sharing the information.
  • A network consists of two or more computers that are linked in order to share resources
  • A network is a collection of computers, servers, mainframes, network devices, peripherals, or other devices connected to allow data sharing.



Difference Between LAN, MAN, WAN

 


Basis

LAN

MAN

 

WAN

Full-Form

LAN stands for local area network.

MAN stands for metropolitan area network.

 

WAN stands for wide area network.

Geographic Span

Operates in small areas such as the same building or campus. 

Operates in large areas such as a city.

 

Operates in larger areas such as country or continent.

Ownership

LAN’s ownership is private.

MAN’s ownership can be private or public.

 

While WAN also might not be owned by one organization.

Transmission Speed

The transmission speed of a LAN is high.

While the transmission speed of a MAN is average.

 

Whereas the transmission speed of a WAN is low.

Propagation delay

The propagation delay is short in a LAN.

There is a moderate propagation delay in a MAN.

 

Whereas, there is a long propagation delay in a WAN.

Congestion

There is less congestion in LAN.

While there is more congestion in MAN.

 

Whereas there is more congestion than MAN in WAN.

Design & Maintenance

LAN’s design and maintenance are easy.

While MAN’s design and maintenance are difficult than LAN.

 

Whereas WAN’s design and maintenance are also difficult than LAN as well MAN.

Fault tolerance

There is more fault tolerance in LAN.

While there is less fault tolerance.

 

In WAN, there is also less fault tolerance.


Types of Network - LAN, MAN, WAN

Types of Network

A computer network can be categorized by their size. A computer network is mainly of four types:

Computer Network Types
  • LAN(Local Area Network)
  • PAN(Personal Area Network)
  • MAN(Metropolitan Area Network)
  • WAN(Wide Area Network)



LAN(Local Area Network)

  • Local Area Network is a group of computers connected to each other in a small area such as building, office.
  • LAN is used for connecting two or more personal computers through a communication medium such as twisted pair, coaxial cable, etc.
  • It is less costly as it is built with inexpensive hardware such as hubs, network adapters, and ethernet cables.
  • The data is transferred at an extremely faster rate in Local Area Network.
  • Local Area Network provides higher security
Computer Network Types


PAN(Personal Area Network)

  • Personal Area Network is a network arranged within an individual person, typically within a range of 10 meters.
  • Personal Area Network is used for connecting the computer devices of personal use is known as Personal Area Network.
  • Personal Area Network covers an area of 30 feet.
  • Personal computer devices that are used to develop the personal area network are the laptop, mobile phones, media player and play stations.
Computer Network Types

There are two types of Personal Area Network:

Computer Network Types
  • Wired Personal Area Network
  • Wireless Personal Area Network

Wireless Personal Area Network: Wireless Personal Area Network is developed by simply using wireless technologies such as WiFi, Bluetooth. It is a low range network.



Wired Personal Area Network: Wired Personal Area Network is created by using the USB.

Tuesday, August 2, 2022

Domain Name

Domain Name

  1. A domain name is a string of text that maps to a numeric IP address
  2. Domain name is used to access a website from client software or browser.
  3. It's the unique name that appears after the @ sign in email addresses, and after www. in web addresses. 

        for example:

        spsharmag@gmail.com

        www.gbsss.in

        here gmail.com and gbsss.in are domain name

        4. Domain name is the name of a website

        5. Domain names are a key part of the Internet infrastructure. They provide a human-readable                     address for any web server available on the Internet.




6. (TLD) Top-Level Domain

7. TLDs tell users the general purpose of the service behind the domain name. The most generic TLDs (.com, .org, .net)