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Comptia A+ Core 1 > Chapter 20 - Wireless Networking > Flashcards

Chapter 20 - Wireless Networking Flashcards

1
Q

IEEE 802.11 standard

A

Primary standard that works in two modes, infrastructure mode and ad hoc mode.

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2
Q

WAP stands for what?

A

Wireless Access Point. Uses infrastructure mode

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3
Q

Wireless Network Card or a NIC

A

A wireless network card or a Network Interface card runs the 802.11 standard infrastructure mode. WNC’s come in many different shapes and sizes. WNC is actually in the monitor for laptops.

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4
Q

SSID stands for what?

A

Service Set Identifier. The name of the wireless network. WIFI name.

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5
Q

Antennas

A

Are important for 802.11

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6
Q

Omni-directional antennas

A

looks like a vehicle antenna.

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7
Q

Dipole antenna

A

is basically two Omni-directional antennas pointing in opposite directions.

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8
Q

Patch Antenna

A

Is going to always have a flat surface. to get coverage in one direction

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9
Q

Highly Directional

A

Used for very long coverage.

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10
Q

ISM stands for what?

A

Industrial, Scientific, and Medical(ISM) radio bands, which is what the 802.11 standard is based off of.

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11
Q

802.11a

A

54Mbps, 5GHz

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12
Q

802.11b

A

11Mbps, 2.4GHz

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13
Q

802.11g

A

54Mbps, 2.4GHZ is only backwards compatible with 802.11b

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14
Q

802.11n

A

100Mbps, 2.4-5GHz is backwards compatible for other 802.11 standards.

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15
Q

802.11 standards

A

802.11a, 802.11b, 802.11g, 802.11n

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16
Q

MMO stands for what?

A

Multiple in/Multiple out. allows a single WAP to use multiple antennas to change its radiation to zero in on a device.

17
Q

802.11ac

A

Improves MMO.

18
Q

Hide/disable SSID broadcast

A

Allows you to hide the SSID broadcast.

19
Q

WMN stands for what?

A

Wireless Mesh Network. WIFI extenders.

20
Q

RFID stands for what?

A

Radio Frequency Identification. Uses tiny radios activated by the energy of the scanning device.

21
Q

NFC stands for what?

A

Near Field Communication, the form of RFID the requires extremely close proximity to function. ex tap-to-pay.

22
Q

Bluetooth

A

similar to 802.11, but only connects two devices in a PAN.

23
Q

PAN stands for what?

A

Personal Area Network.

24
Q

Classes of Bluetooth

A

Class 1, Class 2, Class 3.

25
Q

Class 1 bluetooth

A

100mW, 100m

26
Q

Class 2 bluetooth

A

2.5mW, 10m

27
Q

Class 3 bluetooth

A

1mW, 1m

28
Q

No connectivity

A

trying to connect to a wifi that’s not there, or changed the name, or password.

29
Q

Low RF(Radio Frequency) signal

A

Move closer to the wifi. Check antennas of router.

30
Q

Limited Connectivity

A

other devices slowing down the transfer speed.

31
Q

Slow transfer speed.

A

other devices causing speed to slow down.

32
Q

Intermittent connectivity

A

Low RF signal. Too many people on the wifi.

Comptia A+ Core 1 (26 decks)

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