Networks

Network​

History, Types, Purposes,​ Topologies, WWW, Malwares, Internet, Intranet, extranet, Security, and Safety

​Lesson Objectives

By the end of the lesson students will be able to answer following questions:

1. What is a Network, its history and purpose of network?

2. What are the types of network and devices require to build a network?

3. What is topology?

4. What is difference between Internet, Intranet and Extranet?​

5. What is Security and privacy issues for individuals and networks?

   1. Personal Data, Sensitive personal data and anonymity ​

Some text here about the topic of discussion

Poll

What is the name of First Network?

• ARPHANET

• APRANET

• ARPANET

• DARPHANET

The Advanced Research Projects Agency Network

​​ARPANET

​

Defensive Advanced Research Project Agency Network

DARPANET​

United States of America - Department of Defense​

​US DoD

​Ministry of Defense Russia

Multiple Choice

Who was the creator of ARPANET?

• Ministry of Defense Russia

• United State Department of Defense

• Both

Multiple Choice

What are types of computer over a client-server network?

• Client

• Servers

• None of these

• A and B

Servers are computers that are assigned responsibility for certain tasks for the whole network, and provide services to other computers (the clients)

​Server

Client computers are regular desktop, laptop, or mobile computers that connect to a network to use its services.

​Client

Client-Servers Network

Some text here about the topic of discussion

Types of Servers over a network

File Server : store users' files and data, and control access to them.

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Application Server: perform a similar function for software applications, which can be delivered to any client computer on the network.

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Print Server: manage any printers attached to the network, controlling access to them and maintaining a queue of documents waiting to be printed.

​

Database Server: hosts this information and manages access to it

​

Authentication Server / Domain Server: is responsible for processing login requests and determining whether a user should be allowed access to the network and its resources.​​

Multiple Choice

store users' files and data, and control access to them.

• File Server

• Application Server

• Print Server

• Domain controller

Multiple Choice

hosts this information and manages access to it

• File Server

• Database Server

• Print Server

• Domain controller

Network Devices

Multiple Choice

Which of the following device can be used in place of Bridge?

• Hub

• Switch

• Bridge

• Router

Multiple Choice

Which of the following device connect a LAN to a WAN?

• Hub

• Switch

• Bridge

• Router

Multiple Choice

Which of the following device is DUMB?

• Hub

• Switch

• Bridge

• Router