Data Communication and Networking Quiz

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Questions and Answers

What is the primary function of a computer network?

To manage all software updates for computers

To increase the storage capacity of individual computers

To provide high-speed internet access to all users

To connect computers using a single transmission technology (correct)

Which topology involves each computer being connected to a central hub?

Satellite topology

Star topology (correct)

Tree topology

Ring topology

Which of the following best describes the Internet?

A single network that connects all computers globally

A type of Local Area Network for educational institutions

A set of networks connected by routers that facilitates communication (correct)

A proprietary network managed by a single organization

What is the main characteristic distinguishing a Local Area Network (LAN) from a Wide Area Network (WAN)?

The physical size of the area covered by the network Signup and view all the answers

What is a key feature of ring topology?

Each computer is connected to two other computers, forming a circular network. Signup and view all the answers

Which factor does NOT classify computer networks according to the provided information?

By purpose Signup and view all the answers

Which of the following is not a type of medium used for network transmission?

Bluetooth technology Signup and view all the answers

In the context of network classification by size, what does WAN stand for?

Wide Area Network Signup and view all the answers

What characteristic distinguishes mobile networks from fixed networks?

Mobile networks are a recent development emerging in the 90s. Signup and view all the answers

Which medium is described as having a longer range compared to optical fiber?

Radio waves Signup and view all the answers

How do LAN and WAN compare in terms of management?

LANs are easier to manage than WANs due to their smaller size Signup and view all the answers

What defines the Internet's capacity to connect computers at long distances?

Routers that are configured to pass traffic among networks Signup and view all the answers

What are the two main categories of broadcast topology?

Satellite/radio and ring Signup and view all the answers

Which of the following statements about network latency is true?

Latency refers to the time taken for data to travel from source to destination. Signup and view all the answers

Which parameter is NOT used to differentiate mediums of transmission?

Cost of computer Signup and view all the answers

In which topology does communication take place through a central hub?

Tree topology Signup and view all the answers

Which of the following issues is associated with mobility in networks?

Semi persistent connections Signup and view all the answers

What is one major application of networks in business?

Shipping and planning Signup and view all the answers

Which statement best describes the complexity of networking technologies?

Many different technologies exist with incompatible features. Signup and view all the answers

What is a significant factor contributing to the complexity of networks?

Absence of a single underlying theory or model Signup and view all the answers

How are networks utilized at the government level?

For communication purposes Signup and view all the answers

Which of these is NOT a major area where networks are applied?

Gaming Signup and view all the answers

What challenge does complex administration present in mobile networks?

Tracking users and devices Signup and view all the answers

Why is there no single underlying model for networking?

Various organizations have developed their own conceptual models. Signup and view all the answers

Study Notes

Course Objective

To provide a fundamental understanding of data communication and networks
To explain how computer networks and the internet operate

Reference Material

Data Communication and Networking by Behrouz A. Forouzan, McGraw-Hill Science, 5th edition
Computer Networks and Internets by Douglas E. Comer, 5th edition
Data and Computer Communication by William Stallings, 10th edition
Computer Networks by Andrew S. Tanenbaum, David J. Wetherall, 5th edition
Computer Networking: A Top-Down Approach Featuring the Internet, 6th edition by James F. Kurose and Keith W. Ross

Network Introduction

A network is a system that connects computers using a single transmission technology
Computers in a network can communicate with each other, sending and receiving data

Internet Introduction

The internet is a collection of interconnected networks
Routers connect these networks, allowing traffic to pass between any computer on the internet
Computers at various distances can communicate with one another

Network Classification

Networks are classified by factors such as size, connectivity, medium, and mobility

Network Classification- By Size

LAN (Local Area Network): covers smaller areas like rooms, floors, or buildings
WAN (Wide Area Network): covers larger areas like cities and countries
Internet is a WAN
LAN and WAN are differentiated based on speed, bandwidth and latency, management, security, reliability, billing standards

Network Classification- By Connectivity

Point-to-Point:
- Star topology: each computer connects to a central hub
- Tree topology: communication occurs through a hub
Broadcast:
- Satellite/radio topology: computers connect through satellite or radio waves
- Ring topology: each computer connects to another in a ring structure

Network Classification- By Medium

Transmission mediums include copper wire, coaxial cable, optical fiber, and radio waves
These mediums differ in speed, range, sharing of information, topology, installation costs, and reliability

Network Classification- By Mobility

Fixed networks: do not change location
Mobile networks: move around
Mobile networks introduce location and tracking issues, semi-persistent connections, and complex administrative and billing processes

Networks in Daily Life

Networks are crucial for business activities such as advertising, production, shipping, planning, billing, and accounting
Networks are used in homes for controlling and connecting devices
Governments and military organizations heavily rely on networks for communication
Networks enable access to online resources like libraries on personal computers

Complexity of Network Systems

Many different technologies exist, often incompatible due to varied standards
No single underlying theory or model exists to encompass all networking aspects
Models can be overly simplistic or complex, not accurately representing the complexity of networks
No simple and uniform terminology across various technologies; terms are sometimes confused with product names

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Description

Test your knowledge on the fundamental concepts of data communication and computer networking. This quiz covers key topics from various reference materials that explain the function and operation of networks and the internet. Prepare to delve into how computers communicate within networks and the architecture of the internet.