Chapter 14

What's the optimal range for an 802.11n connection?

300 feet

Which of the following networking standards operated at a frequency of 5.0 GHz?

802.11a

Where would wireless access points likely be found? (Select three.)

Airport Cafe Library

Which of the following statements about SSIDs are true? (Select three.)

All wireless networks use them They should be unique They are broadcast by default

802.11 implements _______________, which proactively avoids network packet collisions rather than simply detecting them when they occur.

Carrier sense multiple access/ collision avoidance

To achieve maximum Wi-Fi coverage in a room, where should you place the WAP?

Center of the room

In an attempt to maximize your wireless throughput while minimizing interference on an 802.11n WAP, which setting should you change?

Change the channel to anything other than 6

Some 802.11g and all 802.11n devices enable _______________ to use two channels at the same time for transmission.

Channel bonding

Connecting two Wi-Fi computers through a WAP uses _______________, whereas connecting the two wirelessly together directly uses _______________.

Infrastructure mode Ad hoc (peer to peer)

What is the predefined silence period between data transmissions called?

Interframe gap

What should you use when you want to limit access to your wireless network based on the physical, hard-coded address of each wireless network device?

MAC address filtering

_______________ allows devices on 802.11n networks to make multiple simultaneous connections, allowing for a theoretical throughput of 600 Mbps.

Multiple in/multiple out (MIMO)

With what technology can you avoid finding an AC outlet for a WAP?

PoE

Dave has set up a Wi-Fi network for his café that works well for most patrons but works poorly on the patio. What's the least expensive option for making Wi-Fi work for the patio customers?

Replace factory antennas

Establishing a unique _______________ or network name helps ensure that only wireless network devices configured similarly are permitted access to the network.

Service set identifier (SSID)

WPA uses _______________ to encrypt data, whereas WPA2 uses the more secure _______________.

TKIP AES

What innovation enables 802.11n networks to minimize dead spots?

Transit beamforming

Which of the following is known as a Basic Service Set in infrastructure mode?

WAP

Of the several wireless encryption protocols, _______________ is most secure.

WPA2

Which of the following is the wireless network encryption method that is most secure?

WPA2

What process secures a wireless network by protecting data packets being transmitted?

data encryption

Of the three different spread-spectrum broadcasting methods, _______________ sends data out on different frequencies at the same time and, therefore, uses considerably more bandwidth.

direct sequence spread spectrum (DSSS)

What is the best way to connect multiple wireless segments together?

point to multipoint wireless bridge

When you want to extend a wireless network, simply add another _______________.

router

When a network uses the 802.11 standard, it is said to be a(n) _______________.

wireless network