Introduction to Information Technology · Unit 7 · 5 hrs
Data Communication and Computer Network
Exam-focused notes for Data Communication and Computer Network (Introduction to Information Technology, CSC114): what the TU syllabus asks and how it has actually been tested, with 11 solved past questions from this unit.
What this unit covers
- Introduction
- Importance of Networking
- Data Transmission Media
- Data Transmission across Media
- Data Transmission and Data Networking
- Computer Network
- Network Types
- Network Topology
- Communication Protocol
- Network Devices
- Wireless Networking
Network Topology
Define network topology. Explain different types of network topologies along with their merits and demerits.[10]
Network topology refers to the physical or logical layout of a network. It defines the way different nodes are placed and interconnected with each other. Alternatively, network topology may describe how the data is transferred between these nodes. There are...
Full solved answer →What is computer network. Discuss the types of network topologies with their pros and cons.[10]
A computer network is a collection of two or more computers and other devices (nodes) that are interconnected with each other to share resources, data, and information. The connected devices communicate through wired or wireless transmission media. A comput...
Full solved answer →Define computer network. Suppose you have a two story building having 15 computers in each of two floors. Now if you are asked to create a network of these computers, what type of network will you create? Give proper justification to your answer. [5]
A computer network is a collection of two or more computers and other devices (such as printers, scanners, etc.) that are interconnected together to share information and resources. It allows users to communicate, share data, hardware equipment, and softwar...
Full solved answer →Data Transmission Media
List some benefits of using computer networks. Explain different types of data transmission media in detail.[10]
--- Computer networks provide numerous advantages in modern computing environments. Some key benefits are: 1. Resource Sharing Hardware resources such as printers, scanners, and storage devices can be shared among multiple users connected to the network, re...
Full solved answer →What is computer network? Discuss different types of data transmission media in computer network with their advantages and disadvantages.[10]
A computer network is a group of computer systems and other computing hardware devices connected together for the purpose of sharing resources via the internet or other communication media. In other words, a computer network allows the exchange of data betw...
Full solved answer →Communication Protocol
What is communication protocol? Why it is used in computer networks? List few examples if communication protocols. [5]
A communication protocol is a set of established rules that dictates how to format, transmit, and receive data so that computer network devices -- from servers and routers to endpoints -- can communicate regardless of the differences in their underlying inf...
Full solved answer →What is communication protocol? Discuss the OSI model with its layers.[10]
--- A communication protocol is a set of rules, standards, and conventions that govern how data is transmitted and received between two or more devices over a network. It defines the format, timing, sequencing, and error checking of messages exchanged betwe...
Full solved answer →Importance of Networking
What are the benefits of using computer network? Explain different types of system software in detail. What is network topology?[10]
--- A computer network is a collection of interconnected computers and devices that can communicate and share resources with each other. The main benefits are: Benefit Description ------ Resource Sharing Hardware resources like printers, scanners, and stora...
Full solved answer →Data Transmission and Data Networking
What is switching? How can you differentiate packet switching from circuit switching? What are the advantages of using optical fibers?[10]
Switching is the mechanism by which data or signals are routed from a source to a destination through a network. In a network with multiple nodes and links, switching determines the path that data takes from the sender to the receiver. It allows multiple de...
Full solved answer →What is switching? How can you differentiate packet switching from circuit switching? What are the advantages of using optical fibers?[10]
Switching is the process of directing data or signals from a source to a destination through a network by selecting an appropriate path or route. In a network, when multiple devices are connected, switching determines how data travels from the sender to the...
Full solved answer →Network Types
Define computer network. Suppose you have a two story building having 15 computers in each of two floors. Now if you are asked to create a network of these computers, what type of network will you create? Give proper justification to your answer. [5]
A computer network is a system in which two or more computers (nodes) are interconnected with each other through communication media (wired or wireless) to share information, resources, and hardware among users.: "Computer networks allow organizations havin...
Full solved answer →Make Unit 7 stick
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