Deck 7: Wireless Networks I
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Question
Unlock Deck
Sign up to unlock the cards in this deck!
Unlock Deck
Unlock Deck
1/78
Play
Full screen (f)
Deck 7: Wireless Networks I
1
The other wireless device is far away in a known direction.You should use ________.
A)an omnidirectional antenna
B)a dish antenna
C)Both A and B
D)Neither A nor B
A)an omnidirectional antenna
B)a dish antenna
C)Both A and B
D)Neither A nor B
B
2
Wireless radio transmission usually is expressed in terms of ________.
A)wavelength
B)frequency
C)Both A and B
D)Neither A nor B
A)wavelength
B)frequency
C)Both A and B
D)Neither A nor B
B
3
Wireless LAN standards are created by the ________ Working Group.
A)802.1
B)802.3
C)802.11
D)802.3W
A)802.1
B)802.3
C)802.11
D)802.3W
C
4
What propagation problem becomes worse as frequency increases?
A)Inverse square law attenuation.
B)Electromagnetic interference.
C)Both A and B
D)Neither A nor B
A)Inverse square law attenuation.
B)Electromagnetic interference.
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
5
Wireless network standards operate at ________.
A)the data link layer
B)the internet layer
C)Both A and B
D)Neither A nor B
A)the data link layer
B)the internet layer
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
6
Frequency is measured in terms of ________.
A)nanometers
B)hertz
C)Both A and B
D)Neither A nor B
A)nanometers
B)hertz
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
7
What propagation problem becomes worse as frequency increases?
A)Absorptive attenuation.
B)Electromagnetic interference.
C)Both A and B
D)Neither A nor B
A)Absorptive attenuation.
B)Electromagnetic interference.
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
8
Wireless network standards come from ________.
A)OSI
B)TCP/IP
C)Both A and B
D)Neither A nor B
A)OSI
B)TCP/IP
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
9
Radio has more reliable transmission than UTP.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
10
The signal strength at 20 meters is 90 mW;the signal strength at 60 meters would be 10 mW.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
11
The total range of possible 802.11 WLAN frequencies in the 2.4 GHz band constitutes ________.
A)a frequency spectrum
B)a broadband
C)a channel
D)a service band
E)All of the above.
A)a frequency spectrum
B)a broadband
C)a channel
D)a service band
E)All of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
12
Cellular telephony uses ________.
A)an omnidirectional antenna
B)a dish antenna
C)Both A and B
D)Neither A nor B
A)an omnidirectional antenna
B)a dish antenna
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
13
What propagation problem becomes worse as frequency increases?
A)Absorptive attenuation.
B)Shadow zones.
C)Both A and B
D)Neither A nor B
A)Absorptive attenuation.
B)Shadow zones.
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
14
The terms channel and service band mean roughly the same thing.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
15
Attenuation with distance is faster with ________.
A)UTP transmission
B)radio transmission
C)Both A and B
D)Neither A nor B
A)UTP transmission
B)radio transmission
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
16
A channel extends from 55 MHz to 60 MHz.Its bandwidth is ________.
A)60 MHz
B)55 MHz
C)65 MHz
D)None of the above.
A)60 MHz
B)55 MHz
C)65 MHz
D)None of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
17
The most serious problem with wireless transmission in WLANs is ________.
A)inverse square law attenuation
B)absorptive attenuation
C)shadow zones
D)multipath interference
A)inverse square law attenuation
B)absorptive attenuation
C)shadow zones
D)multipath interference
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
18
Signals usually ________.
A)travel at a single frequency
B)spread over a range of frequencies
A)travel at a single frequency
B)spread over a range of frequencies
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
19
To handle multiple conversations in radio transmission,you use multiple ________.
A)channels
B)frequencies
C)service bands
D)UWBs
E)wires
A)channels
B)frequencies
C)service bands
D)UWBs
E)wires
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
20
The frequency spectrum extends ________.
A)into the megahertz range
B)into the gigahertz range
C)into the visible light range
D)into the ultraviolet range
E)to infinity
A)into the megahertz range
B)into the gigahertz range
C)into the visible light range
D)into the ultraviolet range
E)to infinity
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
21
In the Shannon Equation,C is the ________.
A)actual speed of transmission in a channel
B)maximum possible speed of transmission in a channel
C)minimum possible speed of transmission in a channel
D)channel bandwidth
E)signal-to-noise ratio
A)actual speed of transmission in a channel
B)maximum possible speed of transmission in a channel
C)minimum possible speed of transmission in a channel
D)channel bandwidth
E)signal-to-noise ratio
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
22
Which unlicensed band provides greater propagation distance for a given level of power?
A)2.4 GHz.
B)5 GHz.
C)Both A and B allow about the same propagation distance.
A)2.4 GHz.
B)5 GHz.
C)Both A and B allow about the same propagation distance.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
23
In 802.11,channel bandwidth usually is ________.
A)20 GHz
B)40 GHz
C)20 MHz
D)40 MHz
A)20 GHz
B)40 GHz
C)20 MHz
D)40 MHz
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
24
If a radio transmission is easily blocked by obstacles,then you need to maintain ________.
A)a clear line of sight
B)spread spectrum transmission integrity
C)broadband transmission
D)deep transmission
E)shadow zone transmission
A)a clear line of sight
B)spread spectrum transmission integrity
C)broadband transmission
D)deep transmission
E)shadow zone transmission
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
25
802.11a supports ________ nonoverlapping channels.
A)1
B)3
C)7
D)More than 10
A)1
B)3
C)7
D)More than 10
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
26
What happens if two nearby access points use the same channel?
A)They will interfere with each other.
B)They will be bonded for joint operation automatically.
C)They will be bonded for joint operation automatically if they use CSMA/CA+ACK.
D)They will be bonded for joint operation automatically if they use RTS/CTS.
A)They will interfere with each other.
B)They will be bonded for joint operation automatically.
C)They will be bonded for joint operation automatically if they use CSMA/CA+ACK.
D)They will be bonded for joint operation automatically if they use RTS/CTS.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
27
To transmit very rapidly in RADIO,you need ________.
A)single-frequency transmission
B)single-mode transmission
C)multimode transmission
D)wide bandwidth
E)narrow bandwidth
A)single-frequency transmission
B)single-mode transmission
C)multimode transmission
D)wide bandwidth
E)narrow bandwidth
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
28
WLANs normally use ________.
A)licensed bands
B)unlicensed bands
A)licensed bands
B)unlicensed bands
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
29
The 2.4 GHz band supports ________ nonoverlapping channels.
A)1
B)3
C)7
D)11
E)more than 11
A)1
B)3
C)7
D)11
E)more than 11
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
30
Channels with wide bandwidths are called ________ channels.
A)single-mode
B)multimode
C)full-duplex
D)broadband
E)modulated
A)single-mode
B)multimode
C)full-duplex
D)broadband
E)modulated
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
31
The frequency range from 500 megahertz to 10 gigahertz is called the ________.
A)frequency spectrum
B)commercial mobile service band
C)UWB region
D)golden zone
E)unlicensed band
A)frequency spectrum
B)commercial mobile service band
C)UWB region
D)golden zone
E)unlicensed band
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
32
Spread spectrum transmission is used in WLANs because ________.
A)it is required by regulators
B)it offers strong security
C)Both A and B
D)Neither A nor B
A)it is required by regulators
B)it offers strong security
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
33
In unlicensed bands,________.
A)you can use radios wherever you please
B)you can prevent nearby businesses from setting up access points in the same channel
C)Both A and B
D)Neither A nor B
A)you can use radios wherever you please
B)you can prevent nearby businesses from setting up access points in the same channel
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
34
Which unlicensed band is defined the same way in most countries around the world?
A)2.4 GHz.
B)5 GHz.
C)Both A and B
D)None of the above.
A)2.4 GHz.
B)5 GHz.
C)Both A and B
D)None of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
35
Spread spectrum transmission is used in WLANs for ________.
A)higher transmission speed
B)more reliable transmission
C)greater security
D)All of the above.
A)higher transmission speed
B)more reliable transmission
C)greater security
D)All of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
36
802.11 standards are being developed to work in the ________ unlicensed band.
A)2.4 GHz
B)5 GHz
C)Both A and B
D)None of the above.
A)2.4 GHz
B)5 GHz
C)Both A and B
D)None of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
37
What aspect of 802.11 standards affects interference between nearby access points?
A)The number of possible nonoverlapping channels.
B)The standard's minimum spacing parameter.
C)RTS/CTS.
D)All of the above.
A)The number of possible nonoverlapping channels.
B)The standard's minimum spacing parameter.
C)RTS/CTS.
D)All of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
38
Interference is minimized in ________.
A)licensed bands
B)unlicensed bands
A)licensed bands
B)unlicensed bands
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
39
To transmit data very rapidly,you would want a ________ channel.
A)narrowband
B)broadband
C)single-frequency band
D)Any of the above.
A)narrowband
B)broadband
C)single-frequency band
D)Any of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
40
In the Shannon Equation,if you quadruple the bandwidth in a channel while the signal-to-noise ratio remains the same,you can transmit ________.
A)Log2(1+4)times as fast
B)Log2(1+1/4)times as fast
C)about 4 times as fast
D)about 1/4 as fast
E)at the same speed,but more reliably
A)Log2(1+4)times as fast
B)Log2(1+1/4)times as fast
C)about 4 times as fast
D)about 1/4 as fast
E)at the same speed,but more reliably
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
41
(From the box,"Controlling 802.11 Transmission")When a wireless NIC wishes to transmit,it listens for traffic.If there is traffic,it waits.If there is no traffic,it may transmit.
A)True.
B)Sometimes true.
C)False.
A)True.
B)Sometimes true.
C)False.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
42
(From the box,"Controlling 802.11 Transmission")CSMA-CA+ACK is ________.
A)efficient
B)inefficient
A)efficient
B)inefficient
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
43
An access point and a host it serves can transmit to each other simultaneously.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
44
In 802.11 WLANs,the terms handoff and roaming mean the same thing.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
45
Which form of spread spectrum transmission divides the channel into many smaller channels called subcarriers?
A)DSSS.
B)FHSS.
C)OFDM.
D)All of the above.
E)None of the above.
A)DSSS.
B)FHSS.
C)OFDM.
D)All of the above.
E)None of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
46
There is an access point that serves eight wireless hosts.On how many channels will these devices transmit during the course of an hour or two?
A)1.
B)2 (one in each direction).
C)7.
D)8.
E)9.
A)1.
B)2 (one in each direction).
C)7.
D)8.
E)9.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
47
A wireless host sends a packet to a server on the company's wired Ethernet LAN via an access point.How many frames will be involved in this one-way transmission?
A)1.
B)2.
C)3.
D)4.
E)There will be one frame for each switch along the way.
A)1.
B)2.
C)3.
D)4.
E)There will be one frame for each switch along the way.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
48
Spread spectrum transmission is used in commercial WLANs for security reasons.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
49
Which of the following uses OFDM?
A)802.11g.
B)802.11n.
C)Both A and B
D)Neither A nor B
A)802.11g.
B)802.11n.
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
50
(From the box,"Controlling 802.11 Transmission")CSMA-CA+ACK usually is ________.
A)required
B)optional
A)required
B)optional
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
51
(From the box,"Controlling 802.11 Transmission")When a wireless NIC receives a frame correctly,it immediately sends back a reply without listening for traffic.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
52
A channel has more bandwidth than is necessary given data transmission speeds requirements in ________ transmission.
A)normal radio
B)reliable commercial
C)spread spectrum transmission
D)licensed
E)None of the above.
A)normal radio
B)reliable commercial
C)spread spectrum transmission
D)licensed
E)None of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
53
(From the box,"Controlling 802.11 Transmission")In ________,when a wireless host wishes to send,it first sends a message to the wireless access point asking for permission to send.When the access point sends back a response,the host sending the original message may transmit.All other hosts must wait.
A)CSMA/CA+ACK
B)CSMA/CA
C)CSMA/CD
D)RTS/CTS
A)CSMA/CA+ACK
B)CSMA/CA
C)CSMA/CD
D)RTS/CTS
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
54
Access points take ________ from wireless devices and send them on to devices on the wired LAN.They also do the converse.
A)frames
B)packets
A)frames
B)packets
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
55
(From the box,"Controlling 802.11 Transmission")CSMA-CA+ACK is reliable.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
56
When a host moves from one wireless access point to another in a WLAN,this is ________.
A)a handoff
B)roaming
C)Both A and B
D)Neither A nor B
A)a handoff
B)roaming
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
57
(From the box,"Controlling 802.11 Transmission")Media access control governs transmission by ________.
A)access points
B)wireless NICs
C)Both A and B
D)Neither A nor B
A)access points
B)wireless NICs
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
58
(From the box,"Controlling 802.11 Transmission")Which of the following is usually optional in access point operation?
A)CSMA/CA+ACK.
B)RTS/CTS.
C)Both A and B
D)Neither A nor B
A)CSMA/CA+ACK.
B)RTS/CTS.
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
59
Access points take frames from wireless devices and send these frames on to devices on the wired LAN.They also do the converse.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
60
Individual throughput falls as the number of wireless hosts using an access point increases.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
61
There is less interference in the 2.4 GHz band than in the 5 GHz band.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
62
802.11n will be superior to current 802.11 standards by ________.
A)offering wider channels
B)sending multiple spatial data streams in a single channel between wireless access points and wireless NICs
C)Both A and B
D)Neither A nor B
A)offering wider channels
B)sending multiple spatial data streams in a single channel between wireless access points and wireless NICs
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
63
The most widely used 802.11 LAN standard today is 802.11n.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
64
MIMO increases ________.
A)throughput
B)propagation distance
C)Both A and B
D)Neither A nor B
A)throughput
B)propagation distance
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
65
Smart antennas can ________.
A)direct signal strength at individual wireless hosts
B)transmit multiple spatial data streams in the same channel
C)Both A and B
D)Neither A nor B
A)direct signal strength at individual wireless hosts
B)transmit multiple spatial data streams in the same channel
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
66
802.11n may offer a rated speed of about ________.
A)11 Mbps
B)54 Mbps
C)300 Mbps
D)3 Gbps
A)11 Mbps
B)54 Mbps
C)300 Mbps
D)3 Gbps
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
67
802.11g has a rated speed of ________.
A)11 Mbps
B)54 Gbps
C)300 Mbps
D)1 Gbps
A)11 Mbps
B)54 Gbps
C)300 Mbps
D)1 Gbps
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
68
Which of the following is true?
A)An 802.11n host can work with an 802.11g access point.
B)An 802.11g host can work with an 802.11n access point.
C)Both A and B
D)Neither A nor B
A)An 802.11n host can work with an 802.11g access point.
B)An 802.11g host can work with an 802.11n access point.
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
69
As a wireless host moves farther from a wireless access point,it is likely to transition to a slower modulation method.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
70
The most rapidly growing 802.11 LAN standard today is 802.11g.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
71
802.11n is designed to operate in the ________ unlicensed band.
A)2.4 GHz
B)5 GHz
C)Both A and B
D)Neither A nor B
A)2.4 GHz
B)5 GHz
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
72
802.11n is faster than 802.11g because 802.11n ________
A)is designed to use wider channels
B)can send multiple signals (spatial transmission speeds)in a single channel
C)Both A and B
D)Neither A nor B
A)is designed to use wider channels
B)can send multiple signals (spatial transmission speeds)in a single channel
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
73
An 802.11g access point has an actual speed of 30 MHz.This is ________.
A)the rated speed
B)aggregate throughput
C)channel bandwidth
A)the rated speed
B)aggregate throughput
C)channel bandwidth
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
74
(From the box,"Controlling 802.11 Transmission")Which of the following is more efficient?
A)CSMA/CA+ACK.
B)RTS/CTS.
C)Both are about equally efficient.
A)CSMA/CA+ACK.
B)RTS/CTS.
C)Both are about equally efficient.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
75
Mesh networking in 802.11 is likely to use ________.
A)only wireless devices
B)wireless devices and the site's wired LAN
C)Both A and B
A)only wireless devices
B)wireless devices and the site's wired LAN
C)Both A and B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
76
Which of the following can offer speeds of about a gigabit per second?
A)802.11g.
B)802.11n.
C)802.11ac.
D)None of the above.
A)802.11g.
B)802.11n.
C)802.11ac.
D)None of the above.
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
77
802.11ad will ________.
A)operate in the 60 GHz radio band
B)have short propagation distance
C)Both A and B
D)Neither A nor B
A)operate in the 60 GHz radio band
B)have short propagation distance
C)Both A and B
D)Neither A nor B
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck
78
The most widely used 802.11 standard today is ________.
A)802.11a
B)802.11b
C)802.11e
D)802.11g
E)802.11n
A)802.11a
B)802.11b
C)802.11e
D)802.11g
E)802.11n
Unlock Deck
Unlock for access to all 78 flashcards in this deck.
Unlock Deck
k this deck