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Questions and Answers: Unit 4 : Web Application and Security

Questions and Answers Unit 4 | Web Application and Security   Q1. Define networking? Ans. A computer network is a collection of computers that allow sharing of resources and information.   Q2. Give any three advantages of networking. Ans. Three advantages of networking are : 1. Data Sharing: 2. Files Transfer 3. Hardware Sharing 4. Internet Access Sharing   Q3. Explain the term packet with reference to data transfer. Ans. Data transfer over the network is divided into small segments called packet. Each packet is sent from one computer to another computer until it finds its destination.   Q4. Explain Wifi and its significance. Ans. Wi-Fi stands for wireless fidelity. Wi-Fi is a popular technology that allows an electronic device such as computers or mobile phones to exchange data wirelessly over a network. Wi-Fi is used where cables cannot be run (such as old buildings, outdoor areas) to provide network and Internet access Q5. Compa...
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NOTES: UNIT-4 WEB APPLICATIONS AND SECURITY

 NOTES:  UNIT-4 WEB APPLICATIONS AND SECURITY SESSION 1: WORKING WITH ACCESSIBILITY OPTIONS Computer Accessibility refers to the user-friendliness of a computer system for all, regardless of their disability. it enables a person with a disability or impairment to use a computer. It is known as Assistive Technology. There are numerous types of impairment that impact computer usage. These include: Cognitive impairments and learning disabilities Attention Deficit Hyperactivity Disorder (ADHD) or autism. Visual impairment. Hearing impairment Motor impairment Launching Accessibility Options : To launch accessibility options in WindowsXP, Click Start > Control Panel > Accessibility Options. Various tabs in the Accessibility Option Window  : The keyboard Tab  to configure accessibility options for the Keyboard is displayed 1) Sticky Keys: Sticky Keys is an accessibility feature to help computer users ...
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