What is an operating system?
A software program that provides the interface between a human and a computer.
Which are the different operating systems that you have worked on?
I have worked on Win 98 and Win XP.
What is a browser?
A web browser is a software application which enables a user to display and interact with text, images, videos, music, games and other information typically located on a Web page at a website on the World Wide Web or a local area network. Ex Internet Explorer, Firefox, Safari.
What is a Mac address?
In computer networking, a Media Access Control address (MAC address) or Ethernet Hardware Address (EHA), is an address assigned to most network adapters or network interface cards (NICs) by the manufacturer for identification.
What is an IP address?
Short for Internet Protocol, IP is an address of a computer or other network device on a network using IP or TCP/IP . Ex :"166.70.10.23" is an example of such an address.
What is a modem?
Short for MODulator / DEModulator, which describes the method used to convert digital data used by computers into analog signals used by the phones and then back into digital data once received by the other computer.
Difference b/w dial up and DSL broadband.
The main difference the interviewer expects from you is that when using broadband a telephone call can be attended or made without loosing the internet connection(as both services voice and data are available on the same telephone line), however when using a dial up connection you can only use one service at a time, that is you can use the telephone or the internet but not both.
The other differences are the speed, dial up - 56 kbps, DSL broadband - from 128kbps to 8Mbps.
In dial up you need a dialer(software) and a number to dial to get connected to the internet. In broadband you configure the connection only once using your username and password and you would stay connected always.
What is a firewall?
A firewall is a hardware, or software running on your computer, which prevents intruders on the network would likely be able to destroy, tamper with or gain access to the files on your computer.
Difference between LAN and WAN?
A Local Area Network (LAN) are home or office networks.
A Wide Area Network (WAN) is a network that spans a large geographical area, the most common example being the Internet.
What is Wi-Fi?
WiFi stands for wireless fidelity, is wireless networking technology.
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