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Network+ N10-008 Todd Lammle > Miscellany 1 > Flashcards

Miscellany 1 Flashcards

1
Q

Which WIFI standard introduced MIMO?

A

802.11n

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2
Q

MIMO

A

Multiple Input, Multiple Output

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3
Q

How wide are the channels in 802.11n?

A

40 MHz

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4
Q

What is the speed of a channel in 802.11n?

A

119 Mbps
(54 for each of the bonded channels, plus the wasted 11 from side tones)

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5
Q

802.11 uses block acknowledgement, what is it?

A

Allowing multiple pckets to be passed before an acknowledgement is required

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6
Q

How does MIMO send traffic?

A

Several frames sent by several antennas and then recombined

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7
Q

What is another name for sending multiple frames through multiple antennas (other than MIMO)

A

spatial multiplexing

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8
Q

What bandwidth does 802.11n use?

A

2.4 GHz, 5.0 GHz or both

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9
Q

MU-MIMO

A

MultiUser MIMO

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10
Q

What does MU-MIMO allow?

A

It allows the antennas used in MIMO to be spread over multiple Access Points

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11
Q

What is the channel width of 802.11ac?

A

Up to 160 MHz

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12
Q

What band does 802.11ac use?

A

5.0 GHz

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13
Q

What standard is Wi-Fi 6?

A

802.11ax

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14
Q

What standard is Wi-Fi 5?

A

802.11ac

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15
Q

What band does 802.11ax use?

A

2.4 GHz and 5.0 GHz

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16
Q

What is the relationship between dBi and dBd?

A

dBd + 2.2 = dBi

17
Q

What is the service set for ad-hoc mode WiFi?

A

IBSS

18
Q

IBSS

A

Independent Basic Service Set

19
Q

What is the service set for Infrastructure mode?

A

BSS

20
Q

BSS

A

Basic Service Set

21
Q

SSID

A

Service Set Identifier

22
Q

What is a lightweight AP?

A

One without a full OS

23
Q

In WiFi, what is split MAC?

A

The controller and AP split duties

24
Q

What is another name for a lightweight AP?

A

A thin AP

25
Q

What is another name for an AP running a full OS?

A

A thick AP.

26
Q

LWAPP

A

Lightweight Access Point Protocol (Cisco)

27
Q

CAPWAP

A

Control and Provisioning of Wireless Access Points

Network+ N10-008 Todd Lammle (33 decks)

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