Computer Networks & Telecommunications for Hospitality

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Questions and Answers

What is a computer network?

Two or more computers connected for the purpose of communicating data electronically.

Define computer telecommunications.

Communication at a distance using electrical signals or electromagnetic waves.

What are the basic functions of different networks?

Identify the basic function of different networks, understand sharing data resources through networks, be familiar with network architecture topologies, and comprehend business and individual internet connections.

How are connections between computers in a network typically made?

Usually using physical wires or cables, but some connections are wireless using radio waves or infrared signals. Signup and view all the answers

What devices can be part of a computer network?

Desktop computers, laptops, mainframes, servers, consoles, thin clients, switches, hubs, modems, routers, smartphones, tablets, and other network devices. Signup and view all the answers

Describe the concept of a network.

A collection of computers, servers, mainframes, network devices, peripherals, or other devices connected to each other to allow data sharing. Signup and view all the answers

Why do organizations use networks?

To allow multiple users to share devices and data, saving money and time. Signup and view all the answers

What is a distributed database?

A database accessed over a network by multiple users. Signup and view all the answers

What is the purpose of a data warehouse?

Designed for query and analysis, usually containing historical data. Signup and view all the answers

What is data mining also known as?

Knowledge discovery in databases (KDD). Signup and view all the answers

What does OLAP software allow users to do?

Analyze information from multiple database systems simultaneously. Signup and view all the answers

Name one benefit of sharing devices over a network.

Saves money by reducing the need for multiple devices. Signup and view all the answers

What is the Internet known as due to its vast network structure?

Information superhighway or cyberspace Signup and view all the answers

What is an extranet and who is allowed access to it?

A controlled private network that allows access to partners, vendors, suppliers, or an authorized set of customers. Signup and view all the answers

How does an extranet differ from the Internet?

An extranet restricts or limits outside users from full access to a company's network. Signup and view all the answers

Who can access the Internet?

The public, including everyone Signup and view all the answers

Give an example of how suppliers can use an extranet.

Suppliers can specify access to the company's network to learn about their supplies to that company. Signup and view all the answers

How does an Intranet differ from the Internet in terms of accessibility?

Intranet restricts public access to the network, unlike the Internet Signup and view all the answers

Give an example of an organization that might use an Intranet.

A school or a company Signup and view all the answers

Explain how customers can utilize an extranet.

Customers can have limited and restricted access to a company's network to place orders online or check the status of their order. Signup and view all the answers

How does an extranet differ from an intranet?

An extranet gives access to specific users who are not employees of the company or business. Signup and view all the answers

What happens if someone is not an employee of a company but tries to access the company's Intranet?

No access is granted Signup and view all the answers

Describe the main difference in accessibility between the Internet and an Intranet.

The Internet can be accessed by everyone, while an Intranet is limited to authorized users within an organization Signup and view all the answers

What is a router's main function in a telecommunication network?

Forwards data packets between computer networks Signup and view all the answers

Define Network Topology.

Arrangement of the elements (links, nodes, etc.) of a communication network Signup and view all the answers

Explain the concept of Bandwidth in a network connection.

Amount of data that can be sent from one point to another in a certain period of time Signup and view all the answers

Describe what Hypermedia Databases allow users to access and work on.

Audio-visual recordings, text, graphics, and photographs of a stored subject Signup and view all the answers

What are Network Nodes in a communication network responsible for?

Originating, routing, and terminating information Signup and view all the answers

Explain the concept of Broadband in network communication.

High-capacity transmission technique using a wide range of frequencies Signup and view all the answers

Study Notes

Computer Networks and Telecommunications

A computer network consists of interconnected computers that can share resources and information.
Computer telecommunications refers to the transmission of data over significant distances for purposes such as communication and information exchange.

Basic Functions of Networks

Different networks serve essential functions, including resource sharing, file exchanging, and communication facilitation.
Networks can be classified based on size and scope, such as LAN (Local Area Network), WAN (Wide Area Network), and MAN (Metropolitan Area Network).

Connections in Networks

Connections between computers in a network are typically made using wired or wireless technologies, such as Ethernet cables and Wi-Fi.

Devices in a Computer Network

Devices such as routers, switches, hubs, and computers can be part of a computer network, enabling connectivity and communication.

Concept of a Network

A network is a system that allows data and resources to be shared among multiple computer systems, creating a collaborative environment.

Organizational Use of Networks

Organizations utilize networks to enhance communication efficiency, streamline operations, and improve resource management.

Distributed Database

A distributed database is an interconnected database spread across multiple locations, allowing for data redundancy and increased accessibility.

Purpose of a Data Warehouse

A data warehouse stores vast amounts of historical data for analysis and reporting purposes, supporting decision-making processes.

Data Mining

Data mining is also known as knowledge discovery in data, focusing on analyzing large datasets to uncover patterns and insights.

OLAP Software

OLAP (Online Analytical Processing) software allows users to perform multidimensional analysis of business data, facilitating complex queries and insights.

One significant benefit of sharing devices over a network is resource optimization, allowing multiple users to access and utilize tools like printers and storage simultaneously.

The Internet's Structure

The Internet is known as a global network due to its vast structure connecting millions of private, public, academic, business, and government networks.

Extranet

An extranet is a controlled private network that allows access to external users, such as partners or suppliers, for collaboration and data sharing.
It differs from the Internet as it requires an invitation or authentication for access, focusing on a specific group.

Internet Accessibility

Anyone with an internet connection can access the Internet, making it widely available to the general public.

Suppliers and Extranets

Suppliers can utilize an extranet for order processing, inventory management, and communication with their business partners.

Intranet vs. Internet Accessibility

An intranet is a private network restricted for the use of an organization's employees, differing from the public accessibility of the Internet.

Organizational Use of Intranets

Companies like corporations or educational institutions may use an intranet to provide internal resources and communication tools for employees.

Customer Utilization of Extranets

Customers can use an extranet to access specific services such as order tracking and account management directly with a company.

Differences Between Extranet and Intranet

An extranet allows limited access to external users, while an intranet is an internal network exclusively for employees.

Non-employee Access to Intranet

If a non-employee attempts to access the company's intranet, access is typically denied due to security measures.

Internet vs. Intranet Accessibility

The main difference in accessibility is that the Internet is publicly accessible while the intranet is secured for internal users only.

Router Function in Telecommunication

A router's main function in a telecommunication network is to direct data traffic between different networks, optimizing communication routes.

Network Topology

Network topology refers to the arrangement and connection pattern of various elements in a network, influencing performance and management.

Concept of Bandwidth

Bandwidth is the maximum rate of data transfer across a network, affecting the speed and capacity of connections.

Hypermedia Databases

Hypermedia databases allow users to access and manipulate interconnected documents with multimedia elements, providing a dynamic information experience.

Network Nodes

Network nodes are points in a communication network responsible for receiving, transmitting, and managing data traffic.

Broadband in Network Communication

Broadband refers to high-capacity transmission techniques that enable multiple signals or data streams to be transmitted simultaneously, enhancing communication efficiency.

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Description

This quiz covers the basic functions of different networks, methods of sharing data resources, network architecture topologies, and business and individual internet connections. Learn and test your knowledge on computer networks in the context of hospitality management.