Download New Updated (Spring 2015) Cisco 642-732 Actual Tests 21-30

Ensurepass

 

QUESTION 21

What are the most appropriate channels for an 802.11a/n VoWLAN survey and deployment in the FCC domain?

 

A.

4 channels of UNII-1

B.

8 channels of UNII-1, and UNII-2

C.

8 channels of UNII-1, and UNII-3

D.

15 channels of UNII-2, and UNII-2 extended

E.

23 channels of UNII-1, UNII-2, UNII-2 extended, and UNII-3

F.

24 channels of UNII-1, UNII-2, UNII-2 extended, UNII-3, and ISM

 

Correct Answer: C

 

 

QUESTION 22

Which two statements best describe the Fresnel zone related to an outdoor RF point-to-point link? (Choose two.)

 

A.

single elliptical area surrounding an RF line of sight

B.

multiple elliptical areas surrounding an RF line of sight

C.

extends vertically

D.

extends horizontally

E.

extends three-dimensionally

 

Correct Answer: BE

 

 

QUESTION 23

Which two statements best describe the Fresnel zone related to an outdoor RF point-to- point link? (Choose two.)

 

A.

blocks no more than 20 percent

B.

blocks no more than 40 percent

C.

blocks no more than 60 percent

D.

comprises a single zone to keep clear

E.

comprises multiple zones of which the first inside zone is the most important to keep clear

F.

comprises multiple zones of which the outside zone is the most important to keep clear

 

Correct Answer: BE

 

 

QUESTION 24

Which two basic factors have the most influence on the size of the Fresnel zone of an outdoor RF point-to-point link? (Choose two.)

 

A.

beamwidth

B.

frequency

C.

distance

D.

horizontally polarized antenna

E.

vertically polarized antenna

 

Correct Answer: BC

QUESTION 25

Mesh APs are commonly mounted alongside a pole, meaning they are both vertically aligned and the pole could partially block the mesh AP RF signal. What is the maximum degree angle to allow for blockage of the antenna field of view?

 

A.

2 degrees

B.

5 degrees

C.

10 degrees

D.

15 degrees

 

Correct Answer: B

 

 

QUESTION 26

What is the vertical height that a MAP should not exceed for proper deployment?

 

A.

15 ft

B.

30 ft

C.

45 ft

D.

55 ft

 

Correct Answer: B

 

 

QUESTION 27

Which item is more of an issue to outdoor wireless mesh deployment than indoor?

 

A.

Reflection

B.

Scattering

C.

Absorption

D.

Delay spread

 

Correct Answer: D

 

 

QUESTION 28

What is the result of a Cisco 1250 AP deployed for 802.11a/b/g/n using optimized power (16.8 W) with software version 7.0?

 

A.

One spatial stream per radio

B.

One spatial stream on 2.4 GHz and two spatial streams on 5 GHz

C.

One spatial steam on 5 GHz and two spatial streams on 2.4 GHz

D.

Reduced power on both radios

E.

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Reduced power on 2.4 GHz radio only

F.

Reduced power on 5 GHz radio only

 

Correct Answer: E

 

 

 

 

 

 

QUESTION 29

Refer to the exhibit. After performing a Layer 1 survey using Cisco Spectrum Expert, what is the result indicated by the visual screen?

 

clip_image002

 

A.

Normal 802.11g activity

B.

Microwave oven interference

C.

Video camera interference

D.

Bluetooth device interference

E.

RF jammer

 

Correct Answer: E

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

QUESTION 30

Refer to the exhibit. After performing a Layer 1 survey using Cisco Spectrum Expert, what is the result indicated by the visual screen?

 

clip_image004

 

A.

Normal 802.11g activity

B.

Microwave oven interference

C.

Video camera interference

D.

Bluetooth device interference

E.

RF jammer

 

Correct Answer: B

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