Exam 2: Wireless Local Area Networks
Describe the difference between directed transmission and diffused transmission with respect to infrared transmissions.
A directed transmission requires that the emitter and detector be directly aimed at one another in a line of sight (LoS) path. A diffused transmission relies on reflected light. The emitters on diffused transmissions have a wide-focused beam instead of a narrow beam and are pointed at the room's ceiling, which serves as the reflection point.
Windows Vista and Windows 7 use which software for configuring wireless NICs?
B
Describe the Microsoft Windows 7 feature referred to as the wireless Hosted Network.
This feature has two parts: the virtualization of the physical wireless NIC into multiple virtual wireless NICs (called Virtual WiFi) and a software-based wireless access point (SoftAP) that uses a designated virtual wireless NIC. The wireless Hosted Network allows users to extend the functionality of their portable laptop computer. For example, a user could set up her computer to create a wireless network so that other users can quickly share documents wirelessly between multiple computers.Another function allows a laptop's network connection to be shared by other computers and devices. For example, a user could connect her computer to the Internet and then turn her computer into an AP that shares the Internet connection with other wireless laptop devices, much like a hardware AP.
List and describe three advantages of standards for wireless technology.
Which of the following are advantages of having standards govern how a technology works? (Choose all that apply.)
If a remote wireless bridge is set to ____,it can only transmit to another bridge in root mode.
A(n)________________ is a device that receives a signal from an emitter.
Which IEEE standard added speeds of 5.5 and 11 Mbps to the WLAN standards?
Which of the following is true about infrared transmissions?
Wireless NICs perform the same function as a wired NIC except for which of the following?
Which type of remote wireless bridge connection is used to connect multiple LAN segments,or buildings together?
A remote wireless bridges support two types of connections.Describe them.
Which of the following are improvements of the 802.11n standard over previous 802.11 standards? (Choose all that apply.)
Which of the following provides the management and configuration functions for a thin access point?
List and describe the two terms used for measuring wireless network speeds.
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