Deck 1: Introduction to Wireless Communications

Question 1

One advantage of wireless technology is that it is immune to interference sources.

Answer 1

False

Question 2

Automatic connections between what type of devices create a piconet?

A) VoIP
B) Infrared
C) Bluetooth
D) WirelessHD

Answer 2

C

Question 3

UWB WiGig has a range of up to 100 meters.

Answer 3

False

Question 4

VoIP phones can carry analog data over the Internet.

Question 5

What is the typical range for the use of Bluetooth?

A) meters to kilometers
B) yards to miles
C) inches to feet
D) millimeters to inches

Question 6

WirelessHD can transfer video and sound at 7 Gbps and higher.

Question 7

DSL is an Internet access technology that uses cable TV lines to make a network connection.

Question 8

What kind of network is built around the concept of low-power transmitters built on towers that can use the same radio frequency channel?

A) Wi-Fi 802.11 networks
B) cellular telephone networks
C) UWB A/V networks
D) GPS tracking networks

Question 9

An AP connects wireless devices to the wired LAN.

Question 10

What type of device is built into a tablet computer and can send data over radio waves to another device such as a laser printer?

A) VoIP phone
B) wireless NIC
C) access point
D) Ethernet NIC

Question 11

With what technology will you find radio modules and link managers?

A) RFID
B) GPS
C) Wi-Fi
D) Bluetooth

Question 12

The ZigBee Alliance protocols enable devices like light switches to communicate with one another.

Question 13

What type of cellular network uses 100 percent digital transmission for voice and data and can reach rates up to 150 Mbps?

A) CDMA
B) 4G
C) 3G
D) GSM

Question 14

Which technology has a maximum range of about 10 meters, can transmit up to 10 Gbps, and is used to transmit high quality audio and video wirelessly?

A) Wi-Fi
B) Bluetooth
C) UWB
D) RFID

Question 15

Where would you most likely find RFID tags around the house?

A) on product packages
B) in the walls and ceilings
C) in the plumbing
D) on the electrical lines

Question 16

What kind of device does a WLAN use to facilitate communication between wireless computers?

A) Ethernet switch
B) GPS hub
C) access point
D) cell station

Question 17

RFID technology is implemented by roadside assistance services to link a vehicle and driver to a central service center.

Question 18

In what type of wireless communication device will you find a repeater?

A) satellite
B) NFC
C) antenna
D) WNIC

Question 19

The job market for wireless LAN professionals is saturated and likely to decline in coming years.

Question 20

How can VoIP over Wi-Fi help save money?

A) by eliminating the need for a phone
B) by saving on cellular phone bills
C) by reducing the cost of a smartphone
D) by not requiring an access point

Question 21

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
remote sensors used for collecting data from manufacturing equipment or for
scientific research

Question 22

Where are you most likely to find the WAP2 protocol in use?

A) cellular phones
B) laptops
C) tablets
D) servers

Question 23

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
a very small network that typically extends to 10 meters or less

Question 24

In the future, most barcode functions are likely to be replaced by ___________ tags including for the purpose of inventory management.

Question 25

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
a digital cellular technology that can send data at up to 21 Mbps over the cellular telephone network

Question 26

Which wireless standard provides for data transmission speeds up to 600 Mbps with a range up to 375 feet?

A) 802.11g
B) WiGig
C) 802.16m
D) 802.11n

Question 27

The FCC, FDA, and EPA have established ________ exposure safety guidelines to limit the signal absorption rate of wireless device users.

Question 28

To protect confidentiality, wireless data can be ______________ between the access point and wireless device, allowing only the recipient to decode the message.

Question 29

Which communication technology should you use if you need to connect three offices which are all within 3 miles of each other at speeds up to 75 Mbps using antennas?

A) T1
B) DSL
C) WiMax
D) ISDN

Question 30

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
a technology used to transmit data over a telephone line

Question 31

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
wireless communications technology that allows devices to transmit data at hundreds of megabits or even gigabits per second at short distances

Question 32

Smartphones can use software that allow them to make ______________ phone calls over a wireless LAN instead of the cellular network.

Question 33

Which technology uses regular phone lines and transmits at speeds up to 256 Kbps?

A) POTS
B) ISDN
C) T1
D) cable modem

Question 34

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
special software in Bluetooth devices that helps identify other Bluetooth devices

Question 35

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
an alliance of companies involved in developing a common wireless specification using the 60 GHz band

Question 36

What term refers to the combining of voice, video and text-processing and access to multiple network platforms from a single device?

A) access aggregation
B) digital landscape
C) digital convergence
D) network transparency

Question 37

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
a technology used to transmit data over special telephone lines at 1.544 Mbps

Question 38

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
a variation of the Java programming language designed for use in portable devices such as cellular phones

Question 39

MATCHING
a. 3G
b. Bluetooth
c. DSL
d. J2ME
e. link manager
f. motes
g. T1
h. UWB
i. WiGig
j. WPAN
a wireless standard that enables devices to transmit data at up to 721.2 Kbps
over a typical maximum distance of 33 feet

Question 40

Bluetooth communicates using small, low-power ______________ called radio modules.

Question 41

What is digital convergence and how might it affect how people use network devices?

Question 42

What does a repeater do in a satellite communication system?

Question 43

Describe how RFID can enhance a family's convenience in the kitchen.

Question 44

Discuss how radio signal interference can affect wireless devices.

Question 45

Discuss the use of wireless technologies in home entertainment.

Question 46

Describe a WMAN and discuss a technology a WMAN might use.

Question 47

Describe Bluetooth technology and how it can be used in a computing environment.

Question 48

How does a WLAN use an access point?

Question 49

What is a piconet?

Question 50

What is UWB and how might it be used in a home?