Dokumen Print (2).docx

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Wi-fi

Wi-Fi is technology for radio wirelesslocal area networking of devices based on the IEEE 802.11 standards. Wifi is a trademark of the Wi-Fi Alliance, which restricts the use of the term Wi-Fi Certified to products that successfully complete interoperability certification testing. Devices that can use Wi-Fi technologies include desktops and laptops, video gameconsoles, smartphones and tablets, smart TVs, digital audio players, cars, and modern printers. Wi-Fi compatible devices can connect to the Internet via a WLAN and a wireless access point. Such an access point (or hotspot) has a range of about 20 meters (66 feet) indoors and a greater range outdoors. Hotspot coverage can be as small as a single room with walls that block radio waves, or as large as many square kilometres achieved by using multiple overlapping access points. Anyone with in range with a wireless network interface controller can attempt to access a network; because of this, Wi-Fi is more vulnerable to attack (called eavesdropping) than wired networks. Wi-FiProtected Access (WPA) is a family of technologies created to protec tinformation moving across WiFi networks and includes solutions for personal and enterprise networks. Security features of WPA have included stronger protections and new security practices as the security landscape has changed over time.

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