Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

N10-008 > WLANs > Flashcards

WLANs Flashcards

1
Q

Ad-Hoc Mode

A

no access to the internet or local area network; just connecting together

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Mesh Topology

A

Uses a combination of different wireless networks such as wifi, microwave, cellular, and more

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Site Survey

A

Wireless survey used to determine coverage areas and produce a coverage heat map

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Range Extender

A

Specialized device that overcomes distance limitations of wireless networks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Omnidirectional Antenna

A

Radiates power equally in all directions (circle)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Unidirectional

A

Focuses power in one direction for covering greater distances

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Yagi Antenna

A

Antenna from building to building

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Parabolic Antenna

A

Like a satellite antenna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Direct-Sequence Spread Spectrum (DSSS)

A

Modulates data over an entire range of frequencies using a series of signals known as chips

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Orthogonal Frequency Division Multiplexing (OFDM)

A

Uses a slow modulation rate with simultaneous transmissions over 52 different data streams

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Channel

A

A virtual medium through which wireless networks can send and receive data

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

how many channels on 2.4 frequency?

A

11 or 14

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What channels to prevent interference?

A

1, 6 and 11

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

how many channels for 5 ghz band?

A

24 non-overlapping channels

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

Channel Bonding

A

Allows for the creation of a wider channel by merging neighboring channels into one

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

802.11a

A

5 Ghz
54 Mbps

17
Q

802.11b

A

2.4 ghz
11 mbps

18
Q

802.11g

A

2.4 ghz
54 mbps

19
Q

802.11n (Wifi 4)

A

2.4 and 5 Ghz
150 mbps/600 mbps (MIMO)

20
Q

802.11ac (Wifi 5)

A

5 ghz
3 Gbps (MU-MIMO)

21
Q

802.11ax (Wifi 6)

A

2.4, 5 and 6 Ghz
9.6 Gbps (MU-MIMO)

22
Q

Pre-Shared Key

A

Both the access point and the client use the same encryption key

23
Q

WEP

A

Original 802.11 wireless security standard which is an insecure security protocol

24
Q

WPA

A

Replaced WEP and follows the Temporal Key Integrity Protocol (TKIP) added RC4

25
Q

WPA2

A

Created as port of 802.11i standard and requires stronger encryption and integrity checking through CCMP; uses AES

26
Q

Extensible Authentication Protocol (EAP)

A

also known as 802.1x; EAP is part of 802.1x

27
Q

MAC Address Filtering

A

Configures an access point with a listing of permitted MAC addresses (like an ACL)

28
Q

Network Access Control (NAC)

A

Permit or deny access to the network based on a device’s characteristics

29
Q

Captive Portal

A

This is the splash page at a coffee shop to get on wifi

30
Q

Geofencing

A

Uses GPS and RFID to define real world boundaries for devices

31
Q

Rogue Access Point

A

a fake access point set up to lure legitimate users to connect to it

N10-008 (21 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions