Deck 4: Wireless Networking

Question 1

Which of the following acts as a transceiver to interconnect a wireless and wired LAN?

A)Attachment unit interface
B)Access point
C)Ethernet unit
D)Ad hoc interface

Answer 1

B

Question 2

The term "out of range" is also called a loss of association.True or False?

Answer 2

True

Question 3

Which of the following services are provided by the wireless LAN adapter

A)Routing
B)Segmenting
C)Delivery of the data
D)Authentication
E)Privacy

Answer 3

C,D,E

Question 4

Using multiple access points can accomplish which of the following?

A)Minimize IP conflicts
B)Decrease collision domains
C)Extend the range for wireless connectivity
D)Decrease broadcast domains

Question 5

The advantages of wireless LANs include which of the following

A)User mobility in the workplace
B)Improved security
C)A cost effective media for areas difficult to wire
D)Improved data throughput

Question 6

A pseudorandom sequence means the numbers appear random but actually repeat.True or False?

Question 7

What is EAP?

A)Electronic Authorization Protocol
B)Extensible Authentication Protocol
C)Extended Authentication Protocol
D)Electronic Authentication Protocol

Question 8

Site surveys are recommended for large wireless networks but are typically not required or even necessary for small networks with a limited number of access points.True or False?

Question 9

Switches can be used with 802.11g but not with 802.11b.True or False?

Question 10

The hopping sequence in FHSS must be known by both the transmitting and receiving units.True or False?

Question 11

Which of the following is the air interface used for RFID tags?

A)Ethernet
B)Slotted aloha
C)Token Ring
D)None of these answers are correct.

Question 12

In RFID,what does the term "backscatter" mean?

A)It refers to the radio waves striking the RFID tag and transmitting a signal back to the receiver source.
B)It refers to the reflection of the infrared waves striking the RFID tag and reflecting back to the transmitter source.
C)It only occurs when both the transmitter and RFID tag share common data patterns.
D)It refers to the reflection of the radio waves striking the RFID tag and reflecting back to the transmitter source.

Question 13

In wireless LANs,DSSS uses which of the following?

A)Three non-overlapping 22MHz channels in the 2.4GHz ISM band
B)Three non-overlapping 2MHz channels in the 2.4GHz ISM band
C)Three non-overlapping 22MHz channels in the 4.8GHz ISM band
D)Two non-overlapping 22MHz channels in the 2.4GHz ISM band

Question 14

What is a RADIUS Server?

A)This is used for remote users to prevent unauthorized users from connecting to the network.
B)This used with WEP for remote users to prevent authorized network access.
C)This is used in high-security applications to limit access to administrative accounts.
D)None of these answers are correct.

Question 15

When is the beacon in wireless LANs broadcast?

A)Once every second
B)Once every minute
C)When a network connection is established
D)About 10 times per second

Question 16

In wireless LAN configuration,the network administrator must ensure that WEP is turned off.True or False?

Question 17

What is term is used to describe an independent network

A)Basic service set
B)Access point
C)Ad hoc
D)ISM

Question 18

Which of the following is an ad hoc network made up of up to eight Bluetooth devices?

A)Net
B)Huit-net
C)Piconet
D)SOA

Question 19

Which of the following is another name for an RFID tag?

A)Coaxial alignment pad
B)Radial displacement tool
C)RF transponder
D)None of these answers are correct.

Question 20

In regards to Bluetooth,what is the inquiry procedure?

A)Enables a Bluetooth device to search for a security hole
B)Used to discover other Bluetooth devices or allow itself to be discovered
C)Is a power management selection where the device checks for power savings
D)Is not used in Bluetooth v127.2

Question 21

What is the data rate for HF tags?

A)32Kbps
B)16Kbps
C)26Kbps
D)48Kbps

Question 22

What is a communications system in which spread-spectrum techniques are used to multiplex more than one signal within a single channel?

A)CDMA
B)CSMD
C)CDDA
D)CMMA

Question 23

What is the maximum transmit power for 802.11b?

A)1000 mW
B)100 mW
C)10 W
D)10 mW

Question 24

What technology has been designed to provide up to 10 times 3G network speeds and features some of the highest achievable rates today?

A)4G
B)Edge
C)HSPA+
D)LTE

Question 25

What is the 802.11ac technology that is used to direct transmission of the radio signal to a specific device?

A)Beamforming
B)Spatial transfer
C)CSMA/CA
D)TIMO

Question 26

Which is not an example of a wireless technology found in mobile devices today?

A)Wi-Fi
B)Bluetooth
C)RFID
D)802.11q

Question 27

You just learned that a car patrolling your neighborhood is scanning the wireless signals coming from homes.What is this called?

A)Social engineering
B)War driving
C)Data diddling
D)Salami attack

Question 28

How many channels are in 802.11ac and what is their width?

A)10 and 80MHz
B)20 and 40MHz
C)8 and 80MHz
D)10 and 40MHz

Question 29

Which technology provides download speeds of 100Mbps?

A)3G
B)4G
C)Edge
D)SLE

Question 30

What is the approximate maximum possible data rate with 802.11ac?

A)1Gbps
B)200Mbps
C)100Mbps
D)10Mbps

Question 31

What technology provides download speeds of 384Kbps?

A)LTE
B)HSPA+
C)4G
D)Edge

Question 32

What statement is true regarding the transmit range for 802.11ac?

A)It is similar to or better than 802.11n.
B)It is similar to 802.11g.
C)It is similar to 802.11a.
D)It is worse than 802.11n.

Question 33

What technology has been designed to provide speeds that are approximately that of LTE?

A)3G
B)Edge
C)HSPA+
D)LTE2

Question 34

MUMIMO is found in what technology?

A)802.11b
B)802.11g
C)802.11a
D)802.11ac