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Touchpad Computer Book Class 8 Ch 1 Solution

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Touchpad Computer Book Class 8 Ch 1 solution

Touchpad Computer Book Class 8 Ch 1 Exercise Solution

Computer Networking

Touchpad Computer Book Class 8 Ch 1 solution​

Touchpad Computer Book Class 8 Ch 1  Solution

Computer Networking

In our interconnected world, computer networking has become an indispensable part of our daily lives. From sending an email to streaming videos and conducting business transactions, networking plays a pivotal role. This article delves into the fascinating realm of computer networking, exploring its advantages, diverse types, architectural considerations, protocols, essential components, topology configurations, and the revolutionary wireless networking technologies that are shaping our digital landscape.

Advantages of Computer Networking

  1. Resource Sharing: Networking allows the sharing of resources such as printers, files, and applications across devices, leading to improved efficiency and reduced costs.

  2. Communication: Networking facilitates seamless communication through emails, instant messaging, and video conferencing, enabling global connectivity and collaboration.

  3. Data Management: Centralized data storage and management are enabled by networking, ensuring data integrity, security, and efficient backups.

  4. Cost Efficiency: Sharing network infrastructure and resources reduces the need for redundant equipment, cutting down on costs.

  5. Remote Access: Networking empowers remote access to resources and systems, enhancing flexibility and productivity, especially in the context of remote work.

Types of Computer Networking

  1. Local Area Network (LAN): LANs connect devices within a limited geographical area, typically within a building or campus, allowing high-speed data sharing.

  2. Wide Area Network (WAN): WANs cover larger areas, often spanning cities or countries, connecting multiple LANs and enabling long-distance communication.

  3. Metropolitan Area Network (MAN): MANs have intermediate coverage, linking multiple LANs within a city or metropolitan area.

  4. Virtual Private Network (VPN): VPNs establish secure, encrypted connections over public networks, ensuring privacy and data protection.

Networking Architecture

  1. Client-Server Architecture: In this model, clients (user devices) request services or resources from servers (powerful computers), ideal for centralized management and resource allocation.

  2. Peer-to-Peer Architecture: All devices in the network are equal, capable of both requesting and providing services. Commonly used in file-sharing applications.

Network Protocols

  1. TCP/IP (Transmission Control Protocol/Internet Protocol): The foundation of the internet, TCP/IP ensures data integrity, packet routing, and end-to-end communication.

  2. HTTP/HTTPS (Hypertext Transfer Protocol/Secure): Used for web browsing, HTTP defines how messages are formatted and transmitted, while HTTPS adds a layer of security.

  3. SMTP/POP3/IMAP (Simple Mail Transfer Protocol/Post Office Protocol/Internet Message Access Protocol): These protocols enable email communication, sending and receiving emails across networks.

Networking Components

  1. Routers: Route data between different networks, directing traffic efficiently.

  2. Switches: Connect devices within a network, managing data traffic at the local level.

  3. Firewalls: Ensure network security by monitoring and controlling incoming and outgoing traffic based on predetermined security rules.

  4. Modems: Modulate and demodulate digital data for transmission over analog communication lines.

Network Topology

  1. Star Topology: All devices are connected to a central hub, simplifying management but creating a single point of failure.

  2. Bus Topology: Devices are connected linearly along a single cable, cost-effective but vulnerable to disruptions.

  3. Ring Topology: Devices form a closed loop, promoting data integrity, but a failure in one device can disrupt the entire network.

  4. Mesh Topology: Every device is connected to every other device, ensuring redundancy and fault tolerance, but it can be complex to manage.

Wireless Networking Technologies

  1. Wi-Fi (Wireless Fidelity): Enables wireless LAN connections, allowing devices to connect to the internet without physical cables.

  2. Bluetooth: Used for short-range communication between devices, often for connecting peripherals like keyboards and headphones.

  3. 5G: The fifth generation of mobile networks, 5G promises high-speed, low-latency connectivity, revolutionizing industries like IoT, healthcare, and autonomous vehicles.

  4. NFC (Near Field Communication): Facilitates short-range communication between devices, widely used for contactless payments and data transfer.

Conclusion

Computer networking has transformed the way we communicate, work, and live. Its advantages, diverse types, architectural considerations, protocols, components, topology configurations, and wireless technologies have woven an intricate web that connects the world. As technology continues to evolve, networking will undoubtedly remain at the forefront of innovation, shaping our digital future.

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Touchpad Computer Book Class 8 Ch 1 solution​

Computer Networking

1. Tick the correct option.

A. …………. describes a computer that is connected to a network.
(i) Node                                                                  (ii) Unit
(iii) Device                                                             (iv) Attachment

Ans: Node

B. Which of the following computer network spans across a city?
(i) LAN                                                                 (ii) MAN
(iii) WAN                                                             (iv) CAN
Ans: MAN
 
C. A Computer network that can be used only within an organization is called…………
(i) Inernet                                                            (ii) Both a and b 
(iii) Intranet                                                        (iv) None of these

Ans: Intranet

D. A / an ………………. address is an unique identification number assigned to a computer connected to a network.
(i) IP                                                                   (ii) Permanent
(iii) Web                                                            (iv) Local

Ans: IP

E. What does SMTP stands for
(i) Simple Mail Transfer Protocol
(ii) Simple Message Transfer Protocol
(iii) Simple Mail Transport Protocol
(iv) System Mail Transfer Protocol

Ans: Simple Mail Transfer Protocol

2. Fill in the blanks using the words from the help box.

Router, Protocol, SMTP, mesh, NIC

A. ……………. is a set of rules that governs the communication between computers on a network.
Ans: Protocol
 
B. …………….. is a protocol used to send e-mail messages over the internet.
Ans: SMTP
 
C. …………………… is a networking device used to connect and facilitate transfer of information between two networks.
Ans: Router
 
D. In ……………….. topology every node is connected to each other node.
Ans: Mesh
 
E. …………….. is an expansion card which is used to provide the network access to a computer.
Ans: NIC
 

3. Write ‘T’ for True and ‘F’ for false.

A. Modulation is the process of converting digital signals to analog signal. …….F
B. Bluetooth technology uses radio frequency to transmit data from one system to another …….T
C. Through computer networking, information can be easily shared amonst people. …….T
D. In Bus topology, all the nodes are connected to a single common path………T
E. A server is also called host computer …….T
 

Touchpad Computer Book Class 8 Ch 1  Question Answer

4. Short Answer Type Questions.

A. What is protocol?
Ans: Protocol is a set of rules that governs the communication between the computers on a network.
 
B. Define client and server.
Ans: Client: It is computer which depends on the server for all the resources.
Server: Server is host computer which control the access to the hardware and software on the network.
 
C. What is topology?
Ans: Topology refers to the geometric arrangement of computers or nodes in a network.
 
D. What is Gateway?
Ans: A gateway is a network device that allows to data to flow between two different networks which use different protocols.
 

5. Long answer type questions

A. What is computer network? Write its advantages
Ans. Compute network is a group of interconnected computer systems and other networking devices.
Advantage of computer network:
  1. information can be easily shared with others.
  2. it reduces the cost of hardware.
  3. store information in one centralised location.
B. Describe LAN and MAN.
Ans. LAN: LAN is a sohrt form of Local Area Network. It is a digital connumication system that interconnects a large number of computers and other peripheral devices within a radius of less than 1 KM.
MAN: MAN Stands for Metropolitan Area Network this network consists of two or more local area networks or campus area networks together that usually spans several buildings in the same city or town.
 
C. What is difference between a web page and a website?
Ans: Webpage: A single digital page on the World Wide Web (WWW) that contains information and links of another pages is called a web page.
Website: A website is a collection of webpages which are interlinked to each other. A website may contains thousands of web pages.
 
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Touchpad Computer Book Class 8 Ch 7 solution

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