Ch 1+2

1.

1 point

Cisco branded “unique” wireless products use which type of connector on antennas?

RJ-45

BNC

DB-9

RP-TNC

2.

1 point

DSSS binary phase-shift keying uses what method of encoding at the 1-Mbps data rate?

11-chip CCK

11-chip Barker code

8-chip CCK

8-chip Barker code

3.

1 point

What is the maximum allowable ratio of power –to-gain for point-to-point connections in FCC standards?

2:1

3:1

1:1

4:1

4.

1 point

Which three IEEE standards can operate at the 2.4GHz range?

B

A

N

G

5.

1 point

What is the difference between the Japan and USA 2.4 GHz ranges?

There is no difference.

2.0 - 2.4835 for Japan and 2.0 - 2.495 for USA

2.0 – 2.495 for Japan and 2.0 – 2.4835 for USA

USA frequency range is higher than the Japanese 2.4 GHz range.

6.

1 point

What is the maximum EIRP for point-to-multipoint in Europe? (Choose all that apply.)

31 Dbm

20 Dbm

17 Dbi

17 Dbm

7.

1 point

True or false: The U.S. complies with ETSI standards of EIRP.

True

False

8.

1 point

What IEEE specifications number defines wireless LANs?

802.3

802.16

802.11

802.15

9.

1 point

What 3 channels in the 2.4 GHz are non-overlapping?

1, 6, 11 at 22 MHz wide

1, 6, 11 at 20 MHz wide

1, 6, 11 at 40 MHz wide

2, 7, 12 at 20 MHz wide

10.

1 point

The FCC regulates wireless in what country?

USA

United Arab Emirates

United Kingdom

Europe, Asian, and Asia

11.

1 point

What is EIRP?

Electrical Induced Radiated Power

Equivalent Isometric Radio Power

Effective Isotropic Radiated Power

Efficient Isotope Radio Power

12.

1 point

The FCC regulates that professional installers maintain what ratio of gain to transmit
power when increasing the gain of an antenna?

1:3

1:1

3:1

6:1

13.

1 point

Which method(s) of modulation is(are) used in DSSS?

Barker 11-bit

PSK and MIMO

Complementary Code Keying (CCK)

DQPSK and DBPSK

14.

1 point

How many nonoverlapping channels exist in the 2.4-GHz ISM range?

3

9

13

17

15.

1 point

Which type of DSSS encoding method operates with 4 different types of turns on the signal waves?

MIMO

DBPSK

OFDM

DQPSK

16.

1 point

On an IEEE 802.11 a network operating at the 2.4 GHz range, what are two examples of the expected average rate shifts? (Choose 2)

2 mbps - 1 mbps

11 mbps - 5.5 mbps

4 mbps - 4 mbps

5.5 mbps - 7 mbps

17.

1 point

True or false: The IEEE is a regulatory body in the U.S. that controls the usage of
wireless frequencies

True

False

18.

1 point

How wide is a DSSS channel?

20

22

21

23

19.

1 point

1The 5.0-GHz range is used by which two of the following 802.11 standards?
(Choose two.)

802.11n

802.11a

802.11

802.11b/g

20.

1 point

What security protocols are needed for a device to be “Wi-Fi certified”? (Choose 2)

WEP

WPA2

EAS

WPA

21.

1 point

CSMA/CA and CSMA/CD are same technology but used in different context.

True

False

22.

1 point

Certification of wireless equipment includes which protocols and standsrds for inter-operability? (2)

WPA/WPA2

IPsec

Zigbee

802.11a/b/g

23.

1 point

Which two of the following are unlicensed frequency bands used in the United
Stated? (Choose two.)

5.0 GHz

2.0 MHz

2.4 GHz

6.8 GHz

24.

1 point

Which of the following is a significant problem experienced with wireless networks?

Infection

Policing

Transmission

Interference

25.

1 point

Which one of these modulation techniques is centered on sending and receiving on multiple antennas?

DSSS

OFDM

MIMO

DQPSK

26.

1 point

DSSS binary phase-shift keying uses an 11-chip Barker code when encoding at a 1 Mbps data rate.

True

False

27.

1 point

Which technology uses a request to send and clear to send to help with collisions on the network?

Token Ring

CSMA/CA

None of These

CSMA/CD

28.

1 point

Which three of the following modulation techniques do WLANs today use?
(Choose three.)

FM

AM

DSSS

MIMO

PFDM

29.

1 point

EIRP maximum based on ETSI standards is different in what way than the FCC standards?

Both regulate maximum power output of a transmitter.

Both the FCC and ETSI standards are actually very similar.

ETSI EIRP standards are the same for both point-to-point and point-to-multipoint. That is not the case for the FCC EIRP standards.

FCC maximum EIRP is 56 dBm, while the ETSI maximum EIRP is 20 dBm.

30.

1 point

In wireless networking, bandwidth means the data rate in mbps.

True

False

31.

1 point

What chipping codes are used for Barker 11-bit? (choose all that apply)

00110011001

10110111000

11001100110

0100100111

32.

1 point

Which of the following accurately describes the goal of RF technology?

To send as much data as far as possible and as fast as possible

To send secure data to remote terminals

To send small amounts of data periodically

To send data and voice short distances using encryption

33.

1 point

The 802.16 standards are established by the IEEE?

True

False

34.

1 point

The Ultra High Frequency (UHF) band contains which radio frequencies used in the IEEE 802.11 wireless standard?

900 MHz only

900 MHz and 2.4 GHz

5 GHz

2.4 GHz and 5 GHz

35.

1 point

Which organization certifies interoperability for wireless equipment?

Wi-Max Alliance

IEEE

FRF.12

Wi-Fi Alliance

36.

1 point

Which wireless standard are capable of operating in the 5 GHz frequency range?

G

A

N

H

B

37.

1 point

With DRS, when a laptop operating at 11 Mbps moves farther away from an access
point, what happens?

The laptop loses its connection.

The laptop roams to another AP

The rate shifts dynamically to 5.5 Mbps

The rate increases, providing more throughput.

38.

1 point

FCC?

Federal Communications Counsel

Federal Communications Committee

Federation of Communication Controllers

Federal Communication Commission

39.

1 point

The IEEE committees work on which of the following wireless standards? (Choose all
that apply.)

802.1q

802.11g

802.11x

802.11a

802.11b

40.

1 point

The FCC regulates EIRP in the U.S. to a maximum of _____ for point-to-point and
_____ for point-to-multipoint

36 dBm, 36 dBm

17 dBm, 36, dBm

30 dBm, 17 dBm

36 dBm, 17 dBm

41.

1 point

What is amplitude defined as?

Volume of the signal

Timing of the signal between peaks

I am just really hungry right now

Pitch of the signal

42.

1 point

DSSS uses a chipping code to encode redundant data into the modulated signal.
Which two of the following are examples of chipping codes that DSSS uses?
(Choose two.)

Baker code

Barker code

Cypher block chaining (CBC)

Complementary code keying (CCK)

43.

1 point

What IEEE specification number defines wireless PAN?

802.15

802.23

802.11

802.16

44.

1 point

The IEEE 802.11 A/G/N protocols are typically considered to be compatible with each other.

True

False

45.

1 point

The frequency bands UNII-1 are defined as having which bandwidth?

5.15-5.25 GHz

4.9-5.0 GHz

5.038-5.091 GHz

None of the Above

46.

1 point

In Europe, can a professional installer increase the gain on wireless antennas?

Yes, provided that he or she decreases the transmit power using a 1:1 ratio.

Only with a wavier

Antennas don't have anything to do with gain.

No; this is illegal.

47.

1 point

What methods of encoding are used in OFDM? (choose all that apply)

DBPSK

DQPSK

CCK

CSMA/CA

48.

1 point

What is the maximum EIRP for point-to-multipoint?

35

45

56

36

49.

1 point

OFDM stands for what?

Orthogonal Frequency Dynamic Modifier

Orthogonal Frequency Division Modulation

Orthogonal Frequency Dynamic Masking

Orthogonal Frequency Division Multiplexing

Orthogonal Fractional Divided Memory

50.

1 point

Each 2.4-GHz channel is how many megahertz wide?

22 MHz

24 MHz

28 MHz

26 MHz