9th Class Computer Chapter 3 Networks Short Questions Answer
9th Class Computer Chapter 3 Networks Short Questions Answer
We are providing all Students from 5th class to master level all exams preparation in free of cost. Now we have another milestone achieved, providing all School level students to the point and exam oriented preparation question answers for all science and arts students.
After Online tests for all subjects now it’s time to prepare the next level for Punjab board students to prepare their short question section here. We have a complete collection of all classes subject wise and chapter wise thousands questions with the right answer for easy understanding.
Here we are providing complete chapter wise Computer questions and Answers for the 9th class students. All the visitors can prepare for their 9th class examination by attempting below given question answers.
In this List we have included all Punjab boards and both Arts and Science students. These Boards students can prepare their exam easily with these short question answer section
Lahore Board 9th classes short questions Answer
Rawalpindi Board 9th classes short questions Answer
Gujranwala Board 9th classes short questions Answer
Multan Board 9th classes short questions Answer
Sargodha Board 9th classes short questions Answer
Faisalabad Board 9th classes short questions Answer
Sahiwal Board 9th classes short questions Answer
DG Khan Board 9th classes short questions Answer
Bahwalpur Board 9th classes short questions Answer
All above mention Punjab Boards students prepare their annual and classes test from these online test and Short question answer series. In coming days we have many other plans to provide all kinds of other preparation on our Gotest website.
How to Prepare Punjab Board Classes Short Question Answer at Gotest
- Just Open the desired Class and subject which you want to prepare.
- You have Green bars which are Questions of that subject Chapter. Just click on Bar, it slides down and you can get the right answer to those questions.
- You can also Rate those question Answers with Helpful or not to make it more accurate. We will review all answers very carefully and also update time to time.
Now you can start your preparation here below
A computer network consists of computers and devices connected together to share information and resources. The resources may include printers, hard disks, scanners or programs etc.
The computers in the network are connected together through communication media such as physical cable or a wireless connection. The communication medium is also known as communication channel.
Five uses of computer network include sending/receiving emails, playing online games, watching videos, reading newspaper and studying online.
Computer network can be used to share files. For example, the education board can share the date sheet file with all students. The students can access it over the internet.
Video conferencing is a popular method of communication. A video conference uses computers. Video cameras, microphones and networking technologies to conduct face to face meetings over the Internet.
Computer network can be used to increase the storage capacity. The users do not need to store everything on personal computer. They can store and access the files remotely on the computer with higher storage capacity.
The popular services for remote storage are Drop Box and Google Drive.
Server provides services to client computers. It performs more activities than clients such as processing data, controlling access and sharing software etc. That is why the server is more powerful than clients.
Different types of dedicated servers include file server, print server, database server and web server. A dedicated server is used to perform a specific task. For example, file server is used to store and manager files. Print server is used to manage printers and print jobs.
The client is a computer in the network that is connected with a server to access different resources. It sends request to the server for resources. The client is typically less powerful than server.
The client and server communicate with each other over network. The client sends request to the server for resources. The server provides the requested resource to client.
A client application is the software that is used to send a request from client to server. It provides an interface to transfer the request to the server. Web browser is an example client application.
A point-to-point connection refers to the direct link between a sender and a receiver. Both devices are connected with one connection line. The connection between a TV and the remote control is an example of point-to-point connection.
A multipoint connection refers to the link between one sender and multiple receivers. A single link can be shared by more devices. Wi-Fi based network is an example of multipoint connection. This connection is shared among multiple devices.
A network can be arranged in different ways. The physical layout or arrangement of connected devices in a network is called network topology. It is the shape of a network.
Difference network topologies include bus topology, ring topology, star topology, tree topology and mesh topology.
Bus topology is the simplest type of network. It supports a small number of computers. In bus topology, all computers or network nodes are connected to a common communication medium. This medium is known as bus or backbone.
When the signal reaches the end of the wire, it bounces back and travel up to the wire. Terminator is added at the ends of the central wire to prevent bouncing of signals.
Bus topology typically supports a small number of computers. The network of bus topology becomes slower if it has too many computers in it.
It is simple and easy to use. It requires small length of cable to connect computers. It is less expensive.
Al computers in star topology are connected with a central device called hub or switch. The sending computer sends the data to central device. The central device sends data to the receiving computer. Each computer in star network communicates with a central device, If Central device fails, the whole network becomes useless.
Star topology is suitable both for small and large networks. It is easy to maintain and modify. It is more flexible than other topologies.
Star topology is more reliable than bus or ring topology. It allows the user to remove or add a device without affecting the network. It is easier to troubleshoot than other topologies. If one computer fails, it does not affect the other computers in the network.
In ring topology, each computer is connected to the next computer with the last one connected to the first. A ring can be unidirectional or bidirectional. In a unidirectional ring, data can be sent in one direction. In a bidirectional ring, data can travel in any direction.
Data communication is the exchange of messages between sending and receiving devices through a communication medium. The messages are the information that may be in the form of text, numbers, images, audio and video.
Different components of data communication system are sender, receiver, message, protocol and transmission medium.
Sender is a device that sends the message. It initiates communication process. It is also called source or transmitter. A Computer is normally used as sender in data communication.
Receiver is a device that receives the message: it is also called sink. The receiver must be capable of accepting a message. The receiver can be Computer, printer or another computer related device.
The message is the data, information or instruction to be communicated. It may consist of text, number, picture, audio, video or a combination of these.
A protocol is a set of rules that governs data communication. It is a formal agreement between communication devices to send and receive information. The devices cannot communicate without protocol.
Medium is the path that connects sender and receiver. It is used to transmit data. It is also called communication channel.
The transmission medium can be wired or wireless. The Wired transmission media are twisted pair cable, coaxial cable and fiber optic cable. The wireless transmission media include radio waves, microwaves and satellites etc.
Router is a networking device that connects multiple networks. It can transmit data from one network to another network in less time. It manages the best route between any two communication networks. It can be used on a network of any size.
A router analyses the destination IP address of the incoming data packet. It determines the best route to forward the packet. It then sends the packet to that route. A router is usually placed at the meeting point of two or more networks.
Routing is a process of transferring data from the device on one network to the device on another network. Every packet has two addresses. The source address identifies the device that sends data. The destination address identifies the device that receives data.