Wireless Technology- Test 1

Review Test Submission: Test#1_REVIEW

• Question 1

After looking at a sticker on the back of an autonomous AP, you see MAC C4:7D:4F:12:34:56 listed. Which one of the following is a safe assumption?
Selected Answer: [None Given]
Answers: The string of numbers is the 5-GHz radio base MAC address.

All of the above are correct.
The string of numbers is the Ethernet port MAC address.
The string of numbers is the 2.4-GHz radio base MAC address.

• Question 2

In its default configuration, which of the following is true of an autonomous AP? (Choose all that apply.)
Selected Answers: [None Given]
Answers: Both radios are enabled.
One SSID (“Cisco”) is configured.

Both radios are disabled.

No SSIDs are configured.

• Question 3
0 out of 1 points

Wireless LAN operation is defined in which one of the following standards?
Selected Answer: [None Given]
Answers: 802.3
802.2
802.1

802.11
802.15

• Question 4
0 out of 1 points

Suppose that you place a new 802.11 transmitter in a building, but notice that there are other signals already coming from transmitters in the same general area. To avoid interference problems, how much greater should your transmitter’s signal be above all of the others?
Selected Answer: [None Given]
Answers:
+20 dBm
+3 dBm
0 dBm
+5 dBm
+10 dBm

• Question 5
0 out of 1 points

Which one of the following determines when a wireless client will roam from one AP to another?
Selected Answer: [None Given]
Answers: The client loses its IP address.
The current AP detects a weak signal coming from the client and forces the client to roam.
The next AP overhears the client’s signal and asks it to roam.

The client’s roaming algorithm reaches a threshold in signal quality.

• Question 6
0 out of 2 points

Which of the following are correct statements about autonomous AP configuration? (Choose all that apply.)
Selected Answers: [None Given]
Answers: An IP address must be configured on the Ethernet0 interface.

An IP address must be configured on the BVI1 interface.
Each AP radio must offer an identical set of SSIDs.

Each AP radio can offer a unique set of SSIDs.
Each AP must be configured with the IP address of its controller.

• Question 7
0 out of 1 points

The orientation of an electromagnetic wave is best described by which one of the following?
Selected Answer: [None Given]
Answers: Amplitude
Modulation
Azimuth
Phase

Polarization

• Question 8
0 out of 1 points

Which one of the following best describes the effect that a building material has as an RF signal passes through a wall?
Selected Answer: [None Given]
Answers:
Absorption
Multi path
Diffraction
Reflection
Refraction

• Question 9
0 out of 1 points

Which regulatory body allocated the 2.4-2.5 GHz band for industrial, scientific, and medical use?

Selected Answer: [None Given]
Answers: FCC

ITU-R

IEEE
ETSI

• Question 10
0 out of 1 points

Which one of the following is not true about a lightning arrestor?
Selected Answer: [None Given]
Answers: Every outdoor antenna needs one.
It directs energy to the ground, rather than the transmitter equipment.
It is connected inline between a transmitter and an antenna.
It protects against large transient spikes of energy.

It protects against lightning strikes on an antenna.

• Question 11
0 out of 1 points

Every 802.11 frame contains 2 flag bits that designate whether the frame is headed to or from which one of the following?
Selected Answer: [None Given]
Answers: The AP

The DS
The BSS
The ESS

• Question 12
0 out of 1 points

Which one of the following statements is true about a wireless BSS?
Selected Answer: [None Given]
Answers: A client must send frames through the AP only when the destination client is associated to a different AP.
Once two clients are associated to the BSS, they may communicate directly with each other with no further intervention.

A client must send all frames through the AP to reach any other client or coordinate with the AP to reach another client directly.
A wireless client can send frames directly to any another client at any time.

• Question 13
0 out of 2 points

An AP has been configured to use channel 1 with a transmit power of 20 dBm. With the AP located in the center of the lobby, you have determined that its signal will reach all locations in the lobby area. However, some users with small battery-operated devices report connectivity problems when they move toward the outer walls of the lobby. Which of the following approaches will probably fix the problem? (Choose two.)
Selected Answers: [None Given]
Answers:
Increase the client device’s transmit power
Adjust the client device’s roaming algorithm
Increase the AP’s transmit power to increase its range

Enable some lower data rates on the AP

• Question 14
0 out of 1 points

Consider a scenario with a transmitter and a receiver that are separated by some distance.The transmitter uses an absolute power level of 20 dBm. A cable connects the transmitter to its antenna. The receiver also has a cable connecting it to its antenna. Each cable has a loss of 2 dB. The transmitting and receiving antennas each have a gain of 5 dBi. What is the resulting EIRP?
Selected Answer: [None Given]
Answers: None of these answers are correct.
+26 dBm
+34 dBm
+20 dBm

+23 dBm

• Question 15
0 out of 1 points

Which one of the following specifies the default amount of time between successive 802.11 data frames?
Selected Answer: [None Given]
Answers: CCA
IBSS

DIFS
SIFS

• Question 16
0 out of 1 points

Which one of the following is the best type of wireless LAN survey to perform for a new building that is under construction, where APs have not yet been deployed?
Selected Answer: [None Given]
Answers: Performance survey

Predictive survey
Active survey
Passive survey

• Question 17
0 out of 1 points

Which one of the following is also known as an ad hoc wireless network?
Selected Answer: [None Given]
Answers: BSA
DS
BSS
ESS

IBSS

• Question 18
0 out of 1 points

A wireless client is configured to associate with the wireless network called BeMyGuest. For the client to roam successfully everywhere within a building, which one of the following correctly identifies the WLAN topology that must be in place?
Selected Answer: [None Given]
Answers: A basic service set
A distribution system
An extended service set
The SSID BeMyGuest defined on every AP

All of these answers are correct.

• Question 19
0 out of 1 points

Which one of the following is a true statement?
Selected Answer: [None Given]
Answers: An autonomous AP cannot connect to a DS.
None of these answers are correct.
An autonomous AP connects through a centralized controller.

An autonomous AP operates in a standalone fashion.

• Question 20
0 out of 1 points

Which one of the following is not needed in a Cisco outdoor mesh network?
Selected Answer: [None Given]
Answers: A wireless LAN controller
A BSS function
A backhaul network

Ethernet cabling to each AP

• Question 21
0 out of 3 points

Which of the following parameters can be adjusted on an AP to change the size of its cell or BSA? (Choose all that apply.)
Selected Answers: [None Given]
Answers: Channel number within a band

Supported data rates

Supported modulation and coding schemes

Transmit power

• Question 22
0 out of 1 points

An existing transmitter in your office sends its signal on 2.4-GHz channel 1. Suppose that someone in a neighboring office sets up a new wireless router. He notices your signal on channel 1, so he chooses channel 2 instead. Which one of the following might adversely affect the wireless operation?
Selected Answer: [None Given]
Answers:
Neighboring channel interference
Excessive SNR
Co-channel interference
Wideband interference

• Question 23
0 out of 3 points

If the IP address of an autonomous AP is not yet known, which of the following methods could you use to find it? (Choose all that apply.)
Selected Answers: [None Given]
Answers:
CDP
AP management GUI

DHCP server logs

AP console CLI

• Question 24
0 out of 1 points

All the APs on the second floor of a building are part of a single ESS. Each AP has been configured with a transmit power level of 14 dBm. In addition, each AP has been configured to use a non-overlapping channel that is different from its adjacent neighbors. All APs have been configured to offer only the 24-, 36-, 48-, and 54-Mbps data rates; all other rates are disabled. One day, one of the APs fails and someone replaces it. Afterward, users begin to call and complain about poor performance and roaming. You discover that the problems are not occurring in the area covered by the replacement AP; instead, they are occurring about two APs away from it. Which one of the following could be causing the problem?
Selected Answer: [None Given]
Answers: The replacement AP is new and cannot be causing the problem.

The replacement AP is using the 1- and 2-Mbps data rates.
The replacement AP is using a transmit level of 1 dBm.
The replacement AP has its radios disabled.

• Question 25
0 out of 1 points

Which one of the following answers correctly identifies the antenna parameter that is measured at 3 dB below the strongest point on a radiation pattern plot?
Selected Answer: [None Given]
Answers: Half life
Decay point
Cut off point

Beamwidth
Sensitivity

• Question 26
0 out of 1 points

Which one of the following best describes the purpose of the first Fresnel zone?
Selected Answer: [None Given]
Answers: The area around a signal path that is blocked by the earth’s curvature
The area around a transmitter that represents the range of a signal

The area around a signal path that should be kept clear of any obstructions
The area covered by one transmitter on a channel

• Question 27
0 out of 1 points

Which one of the following methods can you use to manage a Cisco Meraki AP?
Selected Answer: [None Given]
Answers:
Web browser opened to the Cisco Meraki cloud
CLI via Telnet
Web browser opened to the AP’s IP address
Console port

• Question 28
0 out of 1 points

Suppose you would like to survey the coverage area in a new building to make sure that mobile client devices can associate with APs and roam between them. Which one of the following surveys should you perform?
Selected Answer: [None Given]
Answers: Performance survey
Passive survey

Active survey
Predictive survey

• Question 29
0 out of 1 points

An 802.11 transmitter is configured to send a signal on channel11. Someone reports a problem receiving the signal, so you investigate and find a second transmitter broadcasting on channel11. Which one of the following best describes the problem?
Selected Answer: [None Given]
Answers: Cross-channel interference
Path interference
Adjacent channel interference

Co-channel interference

• Question 30
0 out of 2 points

Which of the following ports are available on an autonomous AP? (Choose all that apply.)
Selected Answers: [None Given]
Answers: Service port
Dynamic interface

Console port

Ethernet port

• Question 31
0 out of 1 points

Which one of the following standards can make use of multiple spatial streams on a transmitter and a receiver?
Selected Answer: [None Given]
Answers: 802.11a
All of these answers are correct.
802.11g
802.11b

802.11n

• Question 32
0 out of 1 points

To upgrade an autonomous AP to lightweight mode, which one of the following initial command keywords should be used from the CLI?
Selected Answer: [None Given]
Answers: upgrade download-sw

archive download-sw
copy flash: tftp:
download upgrade-sw

• Question 33
0 out of 2 points

An AP is located in the main office on the third floor of a building. The AP is configured to use channel 6 in the 2.4-GHz band. Which of the following conditions might hinder clients as they move around on the third floor and need to roam? (Choose all that apply.)
Selected Answers: [None Given]
Answers: All of these answers are correct.
None of the fourth-floor APs directly above the main office use channel 6.

Two other APs in the third-floor main office area use channel 6.

One of the second-floor APs directly below the main office uses channel 6.

• Question 34
0 out of 3 points

Which of the following standards apply to wireless LAN operation in the 5-GHz band? (Choose multiple correct answers.)
Selected Answers: [None Given]
Answers: IEEE 802.11g
IEEE 802.1

IEEE 802.11-2012

IEEE 802.11a
IEEE 802.11b

IEEE 802.11n

• Question 35
0 out of 1 points

The term “AP-on-a-stick” correctly refers to which one of the following?
Selected Answer: [None Given]
Answers: An AP that bridges traffic from one SSID to another
An AP with a single antenna, with MIMO disabled

An AP that is mounted on a tall object to determine its cell size
An AP that has a single cable connecting it to the wired network

• Question 36
0 out of 1 points

Which one of the following is used to uniquely identify an AP and the basic service set it maintains with its associated wireless clients?
Selected Answer: [None Given]
Answers:
BSSID
Ethernet MAC address
SSID
Radio MAC address

• Question 37
0 out of 1 points

To access a wireless channel, 802.11 devices participate in which one of the following?
Selected Answer: [None Given]
Answers: GCF
LCM
BSD

DCF

• Question 38
0 out of 1 points

A transmitter is configured to use a power level of 17 mW. One day it is reconfigured to transmit at a new power level of 34 mW. How much has the power level increased in dB?
Selected Answer: [None Given]
Answers: 17 dB

3 dB
2 dB
None of these answers are correct; you need a calculator to figure this out.
0 dB

• Question 39
0 out of 1 points

When you are designing the AP channel layout for an area, which one of the following is the most important consideration?
Selected Answer: [None Given]
Answers: The number of channels is conserved.

Adjacent APs use non-overlapping channels.
Clients are grouped into common channels.
APs in different areas use different channels.

• Question 40
0 out of 2 points

Which two of the following plots are used to show the radiation pattern of an antenna?
Selected Answers: [None Given]
Answers:
H plane
YZ-plane
A plane
XYplane

E plane

• Question 41
0 out of 1 points

Transmitter A has a power level of 1 mW, and transmitter B is 100 mW. Compare transmitter B to A using dB, and then identify the correct answer from the following choices.
Selected Answer: [None Given]
Answers: 10 dB

20 dB
1 dB
0 dB
100 dB

• Question 42
0 out of 2 points

Which of the following represent the frequency bands commonly used for wireless LANs? (Choose two.)
Selected Answers: [None Given]
Answers: 2.4 MHz

2.4 GHz
5.5 MHz
11 MHz

5 GHz

• Question 43
0 out of 1 points

Devices using a wireless LAN must operate in which one of the following modes?
Selected Answer: [None Given]
Answers:
Half duplex
Full duplex
Round-robin access
None of these answers

• Question 44
0 out of 1 points

Which one of the following is the maximum number of address fields defined in an 802.11 frame header?
Selected Answer: [None Given]
Answers: 1
3
2

4

• Question 45
0 out of 1 points

When a client attempts to join a BSS, which one of the following frame types is sent first?
Selected Answer: [None Given]
Answers: Rate request
Beacon
Association request

Authentication request

• Question 46
0 out of 2 points

An omnidirectional antenna usually has which of the following characteristics? (Choose two.)
Selected Answers: [None Given]
Answers: High gain
Small beamwidth
Zero gain

Large beamwidth

Low gain

• Question 47
0 out of 2 points

64-QAM modulation alters which two of the following aspects of an RF signal?
Selected Answers: [None Given]
Answers:
Phase

Amplitude
Frequency
Quadrature

• Question 48
0 out of 2 points

To convert an autonomous AP into a lightweight AP, which of the following is needed? (Choose all that apply.)
Selected Answers: [None Given]
Answers: An appropriate autonomous upgrade image

A TFTP or FTP server
Enter the convert lightweight command in the AP CLI

An appropriate lightweight code image

• Question 49
0 out of 1 points

Which two of the following types of wireless networks use the same frequency band?
Selected Answers: [None Given]
Answers: WWAN
WMAN

WPAN

WLAN

• Question 50
0 out of 1 points

The Address1 field in an 802.11 frame always contains which one of the following?
Selected Answer: [None Given]
Answers: The transmitter address (TA)
The BSSID
The AP’s base radio MAC address

The receiver address (RA)

• Question 51
0 out of 1 points

Which one of the following is the frame type sent to discover APs within the signal range of a wireless client?
Selected Answer: [None Given]
Answers: Scan

Probe
Beacon
Discovery

• Question 52
0 out of 1 points

The typical data rates of 1, 2, 5.5, and 11 Mbps can be supported by which one of the following modulation types?
Selected Answer: [None Given]
Answers:
DSSS
QAM
OFDM
FHSS

• Question 53
0 out of 1 points

A 2×3 MIMO device correctly describes which one of the following?
Selected Answer: [None Given]
Answers: A device with two radios and three antennas
A device with two bonded channels and three spatial streams

A device with two transmitters and three receivers
A device with two receivers and three transmitters

• Question 54
0 out of 1 points

Which one of the following organizations certifies 802.11 interoperability?
Selected Answer: [None Given]
Answers: IEEE
FCC

Wi-Fi Alliance
ITU-R
Cisco

• Question 55
0 out of 1 points

A transmitter normally uses an absolute power level of 100 mW. Through the course of needed changes, its power level is reduced to 40 mW. What is the powerlevel change in dB?
Selected Answer: [None Given]
Answers:
-4 dB
4 dB
None of these answers are correct; where is that calculator?
-40 dB
2.5 dB

• Question 56
0 out of 1 points

Suppose that an AP is configured to offer the following data rates to its clients: 2, 5.5, 6, 9, 11, 12, 18, 24, 36, and 48 Mbps. Which one of the following strategies should be used to reduce the AP’s cell size?
Selected Answer: [None Given]
Answers: Enable the 1-Mbps data rate

Disable the 2-Mbps data rate
Disable the 36- and 48-Mbps data rates
Enable the 54-Mbps data rate

• Question 57
0 out of 1 points

Which one of the following specifies the correct list of non-overlapping channels for DSSS use in the 2.4-GHz band?
Selected Answer: [None Given]
Answers: 1,5, 10
1,2,3

1, 6, 11
1, 7, 14
All of channels 1-14

• Question 58
0 out of 1 points

An ACK frame is an example of which one of the following 802.11 frame types?
Selected Answer: [None Given]
Answers: Management
Data
Administration

Control

• Question 59
0 out of 1 points

Which one of the following is the common standard that defines wireless LAN operation?
Which one of the following is the common standard that defines wireless LAN
operation?
IEEE 802.1
IEEE 802.1x
IEEE 802.11
IEEE 802.3

Selected Answer: [None Given]
Answers: IEEE 802.3

IEEE 802.11
IEEE 802.1x
IEEE 802.1

• Question 60
0 out of 1 points

In the 2.4-GHz band, the FCC limits the EIRP of a point-to-multipoint link to which one of the following maximum values?
Selected Answer: [None Given]
Answers: 100mW
20 dBm
50mW

36 dBm

• Question 61
0 out of 1 points

A Cisco dipole antenna is mounted so that it points straight upward and has a radiation pattern that extends far outward horizontally. Which one of the following best describes the antenna’s polarization?
Selected Answer: [None Given]
Answers: Elliptical polarization
Horizontal polarization
Dual polarization

Vertical polarization

• Question 62
0 out of 1 points

A receiver picks up an RF signal from a distant transmitter. Which one of the following represents the best signal quality received? Example values are given in parentheses.
Selected Answer: [None Given]
Answers: High SNR (30 dBm), Low RSSI (-75)
Low SNR (10 dBm), Low RSSI (-75)
Low SNR (10 dBm), High RSSI (-30)

High SNR (30 dBm), High RSSI (-30)

• Question 63
0 out of 1 points

A wireless client maintains a NAV value that is used for which one of the following purposes?
Selected Answer: [None Given]
Answers:
To predict when the channel might become free
To navigate the frame through the ESS
To identify the MAC address of the next client to transmit
To set the priority of the client’s ability to transmit

• Question 64
0 out of 1 points

Two transmitters are each operating with a transmit power level of 100 mW. When you compare the two absolute power levels, what is the result in dB?
Selected Answer: [None Given]
Answers: 20 dB

0 dB
You can’t compare power levels in dB.
100 dB

• Question 65
0 out of 1 points

The U-NU-1 band is used for which one of the following purposes?
Selected Answer: [None Given]
Answers:
5-GHz wireless LANs
Point-to-point links
Medical applications
2.4-GHz wireless LANs

• Question 66
0 out of 1 points

Suppose that you need to set up an autonomous AP so that it will offer three different SSIDs to clients. The AP will be connected to a wired network infrastructure. Which one of the following is a true statement about the AP?.
Selected Answer: [None Given]
Answers: An autonomous AP needs a centralized controller to support SSIDs
It can support multiple SSIDs over an access link.

It can support multiple SSIDs over an 802.1Q trunk link.
It can support only one SSID, which must be carried over an access link.

• Question 67
0 out of 1 points

In a passive scan, a wireless client uses which one of the following methods to discover nearby APs?
Selected Answer: [None Given]
Answers: ACKs
Discovers

Beacons
Probe requests

• Question 68
0 out of 1 points

Which one of the following statements is true about roaming?
Selected Answer: [None Given]
Answers: The 802.11 standard defines a set of roaming algorithms for clients.
All wireless clients use the same algorithms to trigger a roaming condition.

Wireless clients can scan available channels to look for a new AP when roaming.
Wireless clients must roam from one AP to another on the same channel.

• Question 69
0 out of 1 points

A dipole antenna is connected to a transmitter. You would like to leverage the directional quality of the antenna. Based on the radiation pattern of the antenna, what would happen if you orient the antenna such that its cylindrical shape points directly at a distant receiver?
Selected Answer: [None Given]
Answers: The antenna is omnidirectional, so the orientation would not matter.
This is pointless unless the receiver’s dipole is also aimed directly at the transmitter.

The receiver would pick up a weaker signal.
The receiver would pick up a stronger signal.

• Question 70
0 out of 1 points

Which one of the following has the shortest effective range in free space, assuming that the same transmit power level is used for each?
Selected Answer: [None Given]
Answers:
An 802.11a device
None of these answers
An 802.11g device
An 802.11b device

• Question 71
0 out of 1 points

An access point is set up to offer wireless coverage in an office. Which one of the following is the correct 802.11 term for the resulting standalone network?
Selected Answer: [None Given]
Answers: BSA
BSD

BSS
IBSS

• Question 72
0 out of 2 points

A wireless AP advertises mandatory data rates of 1, 2, 5.5, and 11 Mbps. Which of the following represent client data rates that can successfully join the BSS? (Choose all that apply.)
Selected Answers: [None Given]
Answers:
Mandatory: 1 Mbps, Supported: 2, 5.5, 11 Mbps
Mandatory: 1 Mbps, Supported: None

Mandatory: 2 Mbps, Supported: 1, 5.5, 11 Mbps
Mandatory: 5, 11 Mbps; Supported: None

• Question 73
0 out of 1 points

Which one of the following antennas would probably have the greatest gain?
Selected Answer: [None Given]
Answers:
Dish
Integrated
Patch
Dipole
Yagi

• Question 74
0 out of 1 points

An 802.11n device can aggregate channels to which one of the following maximum widths?
Selected Answer: [None Given]
Answers: 5 MHz

40 MHz
20 MHz
80 MHz

• Question 75
0 out of 1 points

Which one of the following frame types does a client use to roam seamlessly from one BSS to another, within the same ESS and the same SSID?

Selected Answer: [None Given]
Answers: Roam request
Disassociation

Reassociation

Association request

• Question 76
0 out of 1 points

Which one of the following statements is true about a good wireless LAN design?
Selected Answer: [None Given]
Answers:
APs should be positioned so that their cells overlap.
Neighboring APs should use the same channel to promote good roaming.
APs should use channels that overlap each other.
APs should be positioned so that their cells do not overlap at all.

• Question 77
0 out of 1 points

Which one of the following correctly specifies the maximum theoretical data rate of the 802.11b, 802.11a, and 802.11n standards, respectively?
Selected Answer: [None Given]
Answers: 1 Mbps, 11 Mbps, 54 Mbps
54 Mbps, 54 Mbps, 150 Mbps
11 Mbps, 20 Mbps, 40 Mbps

11 Mbps, 54 Mbps, 600 Mbps

• Question 78
0 out of 2 points

Which of the following wireless LAN standards use OFDM for transmissions?
(Choose all that apply.)
Selected Answers: [None Given]
Answers: 802.11-1997
802.11b

802.11g

802.11a

• Question 79
0 out of 1 points

Which one of the following can be used to provide wireless connectivity to a nonwireless device?
Selected Answer: [None Given]
Answers: Wireless repeater

Workgroup bridge

Transparent bridge

Adaptive bridge

• Question 80
0 out of 1 points

Suppose that an 802.11a device moves away from a transmitter. As the signal strength decreases, which one of the following might the device or the transmitter change to improve the signal quality along the way?
Selected Answer: [None Given]
Answers: Aggregate more channels

Switch to a less-complex modulation scheme
Switch to a more complex modulation scheme
Use more radio chains

• Question 81
0 out of 2 points

Which methods can be used to assign an IP address to an autonomous AP? (Choose all that apply.)
Selected Answers: [None Given]
Answers:
Static through the CLI

DHCP
TFTP
DNS

• Question 82
0 out of 1 points

OFDM offers data rates up to 54 Mbps, but DSSS supports much lower limits.Compared with DSSS, which one of the following does OFDM leverage to achieve its superior data rates?
Selected Answer: [None Given]
Answers: Greater number of channels in a band
Faster chipping rates
Higher-frequency band

48 subcarriers in a channel
Wider 20-MHz channel width

• Question 83
0 out of 1 points

Which one of the following is the primary cause of free space path loss?
Selected Answer: [None Given]
Answers: Absorption
Humidity Levels

Spreading
Magnetic field decay

• Question 84
0 out of 1 points

When RF signals are reflected by objects in a building, which one of the following best describes the result that might be experienced at a receiver?
Selected Answer: [None Given]
Answers: Cross-channel fading

Multipath
Free space path loss
Fresnel loss

• Question 85
0 out of 1 points

Which one of the following is another name for the H plane radiation pattern?
Selected Answer: [None Given]
Answers: Lateral plane
Horizon plane

Azimuth plane
Heat map

• Question 86
0 out of 2 points

In a Cisco wireless network, which of the following statements full of acronyms are correct? (Choose two.)
Selected Answers: [None Given]
Answers: The SSID of a STA must be unique within the ESS.

The DS connects two BSSs to form an ESS.

The BSSID is unique for each SSID in a BSS.
The BSA of a BSS looks like a MAC address.

• Question 87
0 out of 1 points

In an active site survey, how many APs can the survey device associate with and measure at any given time?

Selected Answer: [None Given]
Answers:
1
16
2
As many as can be overheard

• Question 88
0 out of 1 points

Which one of the following 802.11 frames is used to trigger a roam from one AP to another within an ESS?
Selected Answer: [None Given]
Answers: Association request
Disassociation request

Reassociation request
Probe

• Question 89
0 out of 1 points

Which one of the following is the best strategy for avoiding interference between neighboring channels in the 2.4-GHz band?
Selected Answer: [None Given]
Answers: Leverage 802.11n for 40-MHz aggregated channels
Use any channel number that seems to be available
Use only channels that are spaced four numbers apart, beginning with bannel 1

Use only channels that are spaced five numbers apart, beginning with channel 1

• Question 90
0 out of 1 points

To troubleshoot some possible RF coverage issues in a large auditorium, you would like to see a heatmap of every AP (both legitimate and rogue) that can be received at every location. You would also like to see the signal strength of each AP, SNR, and evidence of any co-channel interference. Which one of the following survey types would be best for this purpose?
Selected Answer: [None Given]
Answers: Performance survey

Passive survey
Active survey
Predictive survey

• Question 91
0 out of 1 points

A certain Cisco wireless access point model has antennas that are hidden inside the case. Which one of the following describes the antennas?
Selected Answer: [None Given]
Answers: Patch antennas
Monopole antennas
Isotropic antennas

Omnidirectional antennas