Wi-Fi Interview Preparation Guide

A way to get Internet access, the term Wi Fi is a play upon the decades-old term HiFi that describes the type of output generated by quality musical hardware, Wi Fi stands for Wireless Fidelity and is used to define any of the wireless technology in the IEEE 802.11 specification - including (but not necessarily limited to) the wireless protocols 802.11a, 802.11b, and 802.11g. The Wi-Fi Alliance is the body responsible for promoting the term and its association with various wireless technology standards.

As the availability of Free Wi-Fi locations continues to spread I thought it might be good to review what Free might mean in different types of locations. The locations listed in the Wi-Fi Directory all offer some type of Free Wi-Fi access to the public, but sometimes there may be access requirements/restrictions that are unique to a particular type of location, and therefore the access, although free, may not be available to everyone/anyone. While accessing the Free Wi-Fi in certain locations you will be spending money to pay for a Hotel room or space in a RV Resort or for coffee in a cafe, etc. so the following information should help to clarify what Free Wi-Fi really means in different locations.

The Wi-Fi wireless broadband connection allows you to do anything you'd do from home or the office. You can surf the Web, check your e-mail, connect to your Corporate network (be sure to use a secure VPN connection), make free Voice over IP phone calls, play online games, update your blog, and IM with your friends. If you just have a modem dial-up account at home you'll probably end up spending more time at the Wi-Fi once you see how much faster it is.

You should never conduct unsecured transactions that include any account or password information over public hotspots using FTP, email, or the Web. Try to use SSL for email (POP and SMTP), or read your email with a Web browser using an SSL connection. Ask your ISP if they offer SSL secure web-based email.

A Wi Fi hotspot is defined as any location in which 802.11 (wireless) technology both exists and is available for use to consumers. In some cases the wireless access is free, and in others, wireless carriers charge for Wi Fi usage. Generally, the most common usage of Wi Fi technology is for laptop users to gain Internet access in locations such as airports, coffee shops, and so on, where Wi Fi technology can be used to help consumers in their pursuit of work-based or recreational Internet usage.

You must be using a computer or PDA that has Wi Fi connectivity already working. Most portable computers can add Wi Fi using an adapter that plugs into a PC card slot or USB port.

Generally, no. You should be able to sign up with the provider at the location. Many providers will display instructions when browser software opens on a WiFi-enabled computer. If you don't have an account, simply start your computer and make sure your Wi Fi card is plugged on. Then, open a browser.

No. While both are wireless technology terms, Bluetooth technology lives under the IEEE protocol 802.15.1, while Wi Fi falls under the 802.11 specification. What this means for consumers is that appliances using Wi Fi technology and those using Bluetooth technology are not interoperable. Bluetooth and Wi Fi are different in several ways, and are not necessarily in competition. Wi Fi technology boasts faster data transfer speeds and range, making it a good replacement for Ethernet (802.3) systems, while Bluetooth requires less power and is therefore more prominent in small appliances, such as PDAs.

Wifi provides internet connectivity using wifi hotspots while mifi provides connectivity when the devices are moving. Refer such tutorials, terminologies and more on RFWireless-world.com

Piggybacking is a term which states that something that is riding on the back of something else to complete his/her motive, just like similar to an idiom putting gun to another's shoulder and performing the Hunting, so piggybacking is a term used to refer to access of a wireless internet connection by bringing one's own computer within the range of another's wireless connection, and using that service without the subscriber's explicit permission or knowledge. It is a legally and ethically controversial practice, with laws that vary in jurisdictions around the world. Piggybacking is an unauthorized tapping into another's connection with a public utility.
For e.g.- So piggybacking can be takes place like when I am accessing the wireless connection of my neighbor Wi-Fi without his/her knowledge by hacking his static ip address, then it would be possible for me to access the Wi-Fi connection of others.