Chapter 22 - Wireless Networking

Question 07. What's the top speed for data transfers using IrDA technology? A) 2 Mbps B) 4 Mbps C) 11 Mbps D) 54 Mbps

4 Mbps Data transfers using the IrDA protocol top out at 4 Mbps.

Question 01. Which of the following 802.11 standards functions only on the 5-GHz band? A) 802.11g B) 802.11n C) 802.11ac D) 802.11i

802.11ac The 802.11ac standard functions exclusively on the 5-GHz band, while 802.11g functions on 2.4 GHz, 802.11n functions on both, and 802.11i is a security standard called WPA2.

Question 04. In which mode do all the wireless devices connect directly to each other? A) Ad hoc mode B) Circular mode C) Infrastructure mode D) Mesh mode

Ad hoc mode In ad hoc mode networks, all the nodes connect directly to each other.

Question 09. What is the name for the common omni-directional antennas found on wireless access points? A) Bipole antennas B) Dipole antennas C) Omni antennas D) RF antennas

Dipole antennas Standard omni-directional antennas are called dipole antennas.

Question 10. Ralph has installed a wireless network in his house, placing the wireless access point in the kitchen, a centralized location. The Wi-Fi works fine in the living room and dining room but goes out almost completely in the bedroom. What's most likely the problem? A) Interference with some metal object B) Improper antenna set up C) Use of the default SSID D) The SSID overlapping with a neighbor's SSID

Interference with some metal object Watch out for microwave ovens, refrigerators, and pipes in the walls. They can interfere with a Wi-Fi signal and create dead spots.

Question 06. What technology enables 802.11n networks to make multiple simultaneous connections and thus improve speed over previous Wi-Fi standards? A) Use of the 2.4-GHz frequency B) Use of the 5-GHz frequency C) MIMO D) WPA2

MIMO The multiple in/multiple out (MIMO) technology implementing multiple antennas enables 802.11n networks to run at much faster speeds than previous Wi-Fi networks.

Question 08. Bluetooth technology enables computers to link into what sort of network? A) Bluetooth area network (BAN) B) Personal area network (PAN) C) Local area network (LAN) D) Wide area network (WAN)

PAN Bluetooth creates personal area networks.

Question 05. What determines the name of a wireless network? A) EAP B) MAC address C) SSID D) WAP

SSID The SSID determines the name of a wireless network.

CONGRATULATIONS! YOU HAVE COMPLETED ALL THE QUESTIONS FOR THIS UNIT!

THESE QUESTIONS AND ANSWERS ARE INTENDED TO BE SUPPLEMENTARY TO THE CHAPTERS. THEY ARE NOT A REPLACEMENT FOR THE MAIN READING MATERIAL. DO YOUR READING!!!!!!!!!

Question 03. Which device enables you to extend the capabilities of a wireless network? A) WAP B) WEP C) WPA D) WPA2

WAP A wireless access point (WAP) enables you to extend the capabilities of a wireless network.

Question 02. Which encryption protocol offers the best security? A) Hi-Encrypt B) WEP C) WPA D) WPA2

WPA2 WPA2 is the best of the encryption technologies listed.