BG_deck_4736584 Flashcards

1
Q

Whats the acronym for MIMO?P388

A

multiple-input,multiple output

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2
Q

—— allows for communication at both the 2.4GHz abd 5 GHz frequencies by using channel bonding?P388

A

802.11n

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3
Q

What is MAC efficiency?P388

A

It’s protocols that require acknowledgment of each and every frame.

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4
Q

802.11g and 802.11a use —– channels ,and tones on the sides of each channel are not used to protect the main carrier,which means that 11Mbs are unused or wasted?P388

A

20MHz

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5
Q

What is a Wi-Fi standard that works in the 5GHz range and delivers up to 1 Gigacite throughput that was approved by 802.11 standards?P389

A

802.11ac

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6
Q

What’s the number of channels for 802.11?P390

A

3

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7
Q

What is the frequency bandwith for 802.11?P390

A

2.4GHz

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8
Q

What is the transmission for 802.110a?P390

A

OFDM

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9
Q

What is the data rates for 80.11g?P390

A

1,2,5.5,11-6,9,12,5.5,11

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10
Q

What is the ratified for 802.11n?P390

A

2010

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11
Q

What is the data rate for 802.11ac?P390

A

1000+

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12
Q

To make a wireless network to work properly you need what two devices?P391

A

Access point and a wireless NIC

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13
Q

To get the full 54Mbs benefit of 802.11a and 802.11g you need to be how far away?p391

A

50 feet and 100 feet

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14
Q

Whats the acronym for WAP?P391

A

Wireless access point

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15
Q

What is the acronym for NAT?P392

A

Network address translation

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16
Q

What is the acronym for NIC?P392

A

Network interface card

17
Q

What are the two classes of antennas on the market today?P393

A

Omni directional and directional or yagi (point to point)

18
Q

Do Yagi antennas don’t provide a greater range than Omni antennas?P393 T/F

A

False

19
Q

Omnis and Yagis antennas are rated in units of what?p393

A

Decibel isotropic (dbi) or decibel dipole (dbd).

20
Q

What is the indoor range at 1Mbs rated in feet for Air-ant2410y-r?P394

A

800ft

21
Q

What is the dbi gain for Air-ant2506?P394

A

5.2

22
Q

What is a Indoor range at 11Mbs rated in feet for Air- at1728?P394

A

142ft

23
Q

What is dbi gain for Air- ant2506?P394

A

5.2

24
Q

What is the outdoor range at 11Mbs rated in feet for Air-ant24120/P394

A

7,392ft

25
Q

if you’re having intermittent problem with hosts connecting to the wireless network and varying signal strengths at different locations what shoud you check?P395

A

The antennae location in an office or warehouse to make sure you are getting the best coverage possible.