Networking

Overview

Networking is a fundamental aspect of Information and Communication Technology (ICT) that entails the interconnection of multiple devices for the purpose of sharing resources and information. In the realm of computer networks, various types exist, each serving different scales and purposes. These include Personal Area Networks (PANs), Local Area Networks (LANs), Wide Area Networks (WANs), Metropolitan Area Networks (MANs), Millimeter Area Networks (Milne), Extinct Networks, and the ubiquitous Internet.

Personal Area Networks (PANs) are typically the smallest in scale, encompassing devices within an individual's workspace, such as smartphones, laptops, and tablets. On the other end of the spectrum, Wide Area Networks (WANs) span large geographical areas, connecting disparate locations like branch offices across different cities.

The topology of a network refers to its physical or logical layout, with common types being Star, Bus, and Ring configurations. In a Star topology, devices are connected to a central hub or switch, enabling efficient data transmission. Conversely, Bus topology features a single communication line shared by all devices, whereas a Ring topology involves devices forming a closed loop for data transfer.

Network devices play pivotal roles in ensuring seamless connectivity and data exchange within networks. Hubs serve as central connection points for devices, while Modems facilitate internet access via phone or cable lines. Switches direct data between devices within a network, ensuring efficient communication paths.

Routers guide data packets between different networks, determining the optimal path for information exchange. Gateways link disparate networks with varying protocols, facilitating seamless communication. Additionally, Repeaters amplify and retransmit signals to extend network coverage, enhancing connectivity.

Furthermore, Access Points Interface (APIs) provide access to network services, enabling the interaction of software components with networks. Network Interface Cards (NICs) are hardware components that allow devices to connect to networks, enabling data transmission.

Objectives

  1. List and Define Various Types of Networks
  2. Define Computer Network
  3. Define and Explain the Use of Network Devices
  4. Explain Differences in Basic Network Topologies

Lesson Note

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Lesson Evaluation

Congratulations on completing the lesson on Networking. Now that youve explored the key concepts and ideas, its time to put your knowledge to the test. This section offers a variety of practice questions designed to reinforce your understanding and help you gauge your grasp of the material.

You will encounter a mix of question types, including multiple-choice questions, short answer questions, and essay questions. Each question is thoughtfully crafted to assess different aspects of your knowledge and critical thinking skills.

Use this evaluation section as an opportunity to reinforce your understanding of the topic and to identify any areas where you may need additional study. Don't be discouraged by any challenges you encounter; instead, view them as opportunities for growth and improvement.

  1. Define a Computer Network. A. A collection of interconnected computers and devices that can communicate with each other B. A single computer connected to the internet C. An isolated computer system with no connectivity D. A computer program for network management Answer: A. A collection of interconnected computers and devices that can communicate with each other
  2. What does LAN stand for? A. Large Area Network B. Local Area Network C. Long-range Area Network D. Linked Access Network Answer: B. Local Area Network
  3. What is the purpose of a Router in a network? A. To connect devices within a LAN B. To amplify network signals C. To filter and forward data packets between networks D. To provide secure access to the internet Answer: C. To filter and forward data packets between networks
  4. Which network topology connects all devices to a central hub? A. Star B. Bus C. Ring D. Mesh Answer: A. Star
  5. What is the function of a Hub in a network? A. It connects different LANs together B. It manages and stores network data C. It monitors network traffic D. It broadcasts data to all connected devices Answer: D. It broadcasts data to all connected devices

Recommended Books

Past Questions

Wondering what past questions for this topic looks like? Here are a number of questions about Networking from previous years

Question 1 Report

2(a) Use appropriate labelled diagrams to illustrate the following network topologies.
   i Startopology (ii) bustopology (iii) ring topology.

(b) State one advantage of: i Star topology ii Bus topology.

(c) Give one disadvantage of: (i) Bus topology: (i)Ring topology.


Question 1 Report

Which of these is a specialized port?  


Question 1 Report

Which of the following allows devices on one network to communicate with devices on another network ?


Practice a number of Networking past questions