Quiz 6

Question 1

In which of the following situations would a wireless network be an effective
alternative?
Question 1 options:

all of the above

an older building with no wiring

a network with employees who travel

a business that occupies temporary space

Answer 1

all of the above

Question 2

Wireless communication emits which types of EM radiation? (Choose all that apply.)

Question 2 options:

A) radio frequency waves

B) gamma rays

C) ultraviolet light

D) infrared radiation

Answer 2

infrared radiation

radio frequency waves

Question 3

The maximum departure of a wave from its undisturbed state is called which of the
following?
Question 3 options:

hertz

wavelength

amplitude

frequency

Answer 3

amplitude

Question 4

All types of electromagnetic radiation are collectively called which of the following?

Question 4 options:

visible light spectrum

light spectrum

EM field

EM spectrum

Answer 4

EM spectrum

Question 5

Frequency is defined as which of the following?

Question 5 options:

radiation spreading out as it moves

the distance between repeating units of a wave

a method of transporting energy without physical movement of material

the number of times an event occurs in a specified period

Answer 5

the number of times an event occurs in a specified period

Question 6

The distance between midpoints of a wave is called which of the following?

Question 6 options:

hertz

frequency

wavelength

amplitude

Answer 6

wavelength

Question 7

What type of infrared transmission relies on reflected light?

Answer 7

diffused IR transmission

Question 8

Infrared wireless is extremely fast, can travel long distances, and is not susceptible
to interference.
Question 8 options:

True
False

Answer 8

False

Question 9

Which of the following is a common type of signal loss? (Choose all that apply.)

Question 9 options:

A) scattering

B) deflection

C) deletion

D) diffraction

Answer 9

scattering

diffraction

Question 10

Refraction occurs when the RF signal is dispersed by small objects, such as raindrops or
foliage.
Question 10 options:

True
False

Answer 10

False

Question 11

Which of the following is used to provide a relative measurement of RF power?

Question 11 options:

watts

milliwatts

10s and 3s rules of RF math

decibels

Answer 11

decibels

Question 12

Why is digital modulation superior to analog modulation? (Choose all that apply.)

Question 12 options:

A) It makes more efficient use of bandwidth.

B) It has fewer interference problems.

C) Less power is required to transmit.

D) Error correction is more compatible with other digital systems.

Answer 12

A) It makes more efficient use of bandwidth.

B) It has fewer interference problems.

C) Less power is required to transmit.

D) Error correction is more compatible with other digital systems.

Question 13

Which of the following is considered an advantage of spread spectrum over narrowband wireless transmission? (Choose all that apply.)
Question 13 options:

A) does not require a chipping code

B) increased security

C) decreased susceptibility to interference

D) requires less power to reach the same amplitude

Answer 13

increased security

decreased susceptibility to interference

Question 14

Radio waves striking an antenna create infrared radiation.

Question 14 options:

True
False

Answer 14

False

Question 15

IEEE 802.11ac is expected to support a bandwidth of .

Question 15 options:

512 Mbps

54 Mbps

102 Mbps

1000 Mbps

Answer 15

1000 Mbps