Computer networking: Introduction MCQs Quiz | Class 9
This is a multiple-choice quiz for Class: IX, Subject: Computer Applications (Code 165), from Unit 1: Basics of Information Technology. This quiz covers the topic of the meaning of networking and why networks are used. Attempt all 10 questions, submit your answers to see your score, and download a PDF of your answer sheet.
About Computer Networking
This section provides a detailed explanation of the topics covered in the quiz. Read through to clarify your concepts about the meaning and purpose of computer networking.
What is a Computer Network?
A computer network is a collection of two or more interconnected computers and other devices (like printers, scanners, etc.) that are linked together to share resources and exchange data. The connection between these devices can be established using cables (wired) or through radio waves (wireless). The main goal of a network is to enable seamless communication and resource sharing among its connected devices, known as nodes or hosts.
Why Do We Use Networks? – The Key Advantages
Networks are fundamental to modern technology because they offer numerous benefits. Understanding these advantages helps clarify why networking is so widely used in homes, schools, offices, and across the entire globe.
- Resource Sharing: This is one of the most significant advantages. Instead of buying a separate printer for every computer, a single printer can be connected to the network and shared by all users. Other shareable resources include scanners, hard disk space, and software.
- Communication and Collaboration: Networks provide powerful communication tools. Users can send emails, instant messages, and participate in video calls. They can also work together on the same documents or projects from different locations, which improves teamwork and productivity.
- Cost-Effectiveness: By sharing hardware (like printers) and software, organizations can save a lot of money. Sharing a single internet connection among multiple users is also a common cost-saving practice.
- Centralized Data Management: In a networked environment, important data can be stored on a central computer called a server. This makes it easier to manage, secure, and back up data. Users can access this data from their individual computers (clients) with proper authorization.
- Increased Reliability: Data can be replicated and stored on multiple computers on the network. If one computer fails, the data can still be accessed from another machine, ensuring that information is not lost.
| Advantage | Description | Example |
|---|---|---|
| Resource Sharing | Allows multiple users to use a single hardware or software resource. | Multiple office computers using one shared network printer. |
| Improved Communication | Enables fast and efficient exchange of information. | Sending an email or an instant message to a colleague. |
| Cost Reduction | Saves money by sharing devices and internet connections. | A family sharing one Wi-Fi connection for all their devices. |
| Centralized Storage | Keeps all data in one secure, manageable location (a server). | Accessing project files from a central company server. |
Quick Revision Points
- A network is a set of connected computers for sharing resources.
- Any device on a network is called a node.
- The primary purpose of networking is resource sharing and communication.
- Sharing printers, files, and internet connections are common examples of resource sharing.
- Networks help reduce costs and improve collaboration.
- Connections can be wired (using cables) or wireless (using Wi-Fi).
Extra Practice Questions
- What is a ‘server’ in the context of networking?
- Give two examples of devices that can be shared over a network.
- Explain the difference between a wired and a wireless connection.
- How does networking help in saving money for a small business?
- What does the term ‘data exchange’ mean in networking?
