Brainscape's Knowledge GenomeTM

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


See full index

Comptia Network + > Chapter 14 Wireless Networks > Flashcards

Chapter 14 Wireless Networks Flashcards

1
Q

What is a Basic Service Set (BSS)

A

A single WAP servicing a given area

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

What is a Extended Basic Servicing set (EBSS)

A

A bunch of WAP providing service to an area

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

What is a SSID Service set identifier

A

A name to describe the BSS

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

How does DSSS (Direct-sequence spread spectrum) work

A

Sends data out on different frequencies at the same time

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

How does FHSS (Frequency-hopping spread-spectrum) work

A

Sends data over a frequency one at a time constantly switching or hopping at a time

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

How does OFDM (Orthogonal frequency-division multiplexing) work

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

What channels are allowed for the 2.4ghz band

A

1 through 11

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

Why should two WAP close to each other use channels that are far away from each other

A

To reduce the chance of interference

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

What are the most common 2.4ghz channels

A

1 6 and 11

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

What is Carrier-sense multiple access with Collision avoidance

A

A wireless client wont send any packets until it knows no other client is sending anything

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

What is the speed and ghz of 802.11b

A

11 Mbps at 2.4ghz DSSS

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

What are the speed and frequency of 802.11a

A

54Mbps at 5Ghz OFDM

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

What is the speed and frequency of 802.11g

A

54mbps at 2.4Ghz OFDM

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

What is the speed and frequency of 802.11n

A

108-300 Mbps at 2.4Ghz/5.0Ghz MIMO OFDM

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

What is the speed and frequency of 802.11ac

A

1Gbps+ at 5.0Ghz MU-MIMO

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

What is the shape of an omni antenna radiation pattern

A

A spherical shape

17
Q

What is the radiation pattern of a dipole antenna

A

A flat donut shaped pattern

18
Q

What is the radiation pattern of a patch antenna

A

Half a circle (radiates in one direction)

19
Q

What is the radiation pattern of a Directional/Yagi

A

A stretched football like pattern

20
Q

What is the radiation pattern of a Parabolic antenna

A

Same as a Yagi/Directional like football pattern but can go out to about 8 miles

21
Q

What encryption protocol does WPA2 use

A

CCMP-AES

22
Q

What is the encryption protocol of WPA

A

(TKIP) Temporal Key Integrity Protocol

23
Q

What are three things you can do to harden security of a wireless network

A
  • Disable SSID broadcast
  • Use NAC filtering
  • Limit the number of DHCP issued addresses
24
Q

What is a Rouge (AP) Access Point

A

Any unauthorized access point on a network

Comptia Network + (18 decks)

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