Deck 7: Wireless Networking

Question 1

"Wi-Fi" is short for "wireless fidelity."

Answer 1

True

Question 2

A wireless router or access point broadcasts its service set identifier (SSID) as a way of identifying the network's name.

Answer 2

True

Question 3

A device configured for the 802.11a standard will always be compatible with one configured for 802.11b.

Answer 3

False

Question 4

An "evil twin" attack involves a hacker standing close to the user of a wireless device in an attempt to spot login information, passwords, and other sensitive data.

Question 5

Bluejacking is the most dangerous threat to a Bluetooth device.

Question 6

SMS is no longer one of the most widely used and popular forms of communication methods, having been replaced in 1994 by PCS.

Question 7

A piconet can connect two to sixteen devices at a time.

Question 8

Devices using infrared technology can easily beam information across a crowded room, or even around a corner.

Question 9

All Bluetooth devices are designed to be compatible with each other.

Question 10

City-wide wireless networks are often called municipal broadband.

Question 11

WWAN networking provides wireless connections to the Internet using networks created by cellular phone carriers.

Question 12

WEP and WPA both can use a 128-bit key to encrypt data.

Question 13

Phishing is the act of driving through a neighborhood looking for unsecured wireless networks.

Question 14

Three security problems of Bluetooth devices are bluejacking, bluesnarfing, and bluebugging.

Question 15

One way to increase protection of wireless devices is to disable the device's autoconnect feature.

Question 16

A wireless mesh network is a series of wireless nodes that relay communication across a network.

Question 17

The first wireless technology was used in 1988.

Question 18

Hackers sometimes use "sniffer programs" to illegally monitor activity on wireless networks.

Question 19

Every network interface card receives a unique number, called a MAC address, to identify the device.

Question 20

Wired Passphrase Encryption (WPE) is a security protocol for wireless LANs that works by encrypting data sent over the network.

Question 21

Source: Motorola Archives
The accompanying figure shows a(n) 2G wireless device that transmits voice data only. _________________________

Question 22

A(n) ____ local area network is a network in which devices use high-frequency radio waves to communicate with a base station, which is connected to the Internet.

A) wired
B) ethereal
C) wireless
D) cellular

Question 23

Text messages were first made available to cell phone users with the advent of ____ technology.

A) 1G
B) 2G
C) 2.5G
D) 3G

Question 24

The term "piconet" is used in relationship to infrared technology. _________________________

Question 25

WPA is a standard that was developed by the World Wide Web Consortium to address inherent weaknesses in WEP. _________________________

Question 26

The two major types of PAN are infrared and Bluetooth. _________________________

Question 27

When WEP is enabled, it encrypts data sent over a network using a key, sometimes also called a(n) passphrase, that is entered by the user. _________________________

Question 28

A(n) dual band access point makes it possible to connect any wireless device to the same access point. _________________________

Question 29

In Wi-Fi terms, a(n) ____ is an area of network coverage.

A) wired spot
B) hotspot
C) access zone
D) hot zone

Question 30

The ____ is a not-for-profit organization that certifies interoperability of Wi-Fi products and promotes Wi-Fi as a standard for wireless LANs.

A) W3C
B) Wireless Initiative
C) Mobile Productivity Alliance
D) Wi-Fi Alliance

Question 31

Bluesnarfing occurs when a hacker with special software is able to detect the signal from a Bluetooth device and gain access to its data. _________________________

Question 32

Most consumer Bluetooth devices have a data transfer rate of 1 Mbps. _________________________

Question 33

In 1994, cellular phone carriers created the first commercial digital networks, with a data transfer rate of ____.

A) 14.4 Kbps
B) 14.4 Mbps
C) 56 Kbps
D) 11 Mbps

Question 34

Voice over Internet Protocol converts audio signals to digital packets so that you can use a broadband Internet connection to make telephone calls. _________________________

Question 35

Most experts recommend that, when you leave for vacation, you should change the passphrase to your wireless network for security. _________________________

Question 36

To access the Internet using a(n) WLAN, you need an account with the cellular carrier that owns the network. _________________________

Question 37

In a wireless mesh network, the number of nodes that need to be wired to an Internet connection is one. _________________________

Question 38

A(n) MiFi device is a small, battery-operated, mobile personal hotspot for connecting Wi-Fi devices to the Internet. _________________________

Question 39

SSIDs are not case-sensitive. _________________________

Question 40

A wireless device's ____ refers to the physical distance between the access point and the wireless device.

A) bandwidth
B) travel zone
C) network mesh
D) range

Question 41

In the accompanying figure, Box "D." would show a radio spectrum of ____ GHz.

A) 1.2
B) 5
C) 9
D) 2.4

Question 42

In the accompanying figure, Box "E." should show a data transfer rate of up to ____ Mbps.

A) 1
B) 3
C) 11
D) 54

Question 43

When you see the term "Wi-Fi," it most often refers to the 802.11 ____ standard.

A) a
B) b
C) g
D) n

Question 44

Because infrared uses ____ waves to carry data, it doesn't interfere with technologies that use radio waves.

A) morse
B) light
C) fiber-optic
D) cross-spectral

Question 45

IrDA stands for ____.

A) Infrared Data Association
B) Internet Domain Administration
C) Information Deliverance Association
D) Integrated Data Access

Question 46

In the accompanying figure, Box "A." represents the column heading "____".

A) Infrared
B) 802.11h
C) 802.11n
D) WiMAX

Question 47

The hotspot created by MiFi is password protected and can be used to connect Wi-Fi devices located within ____ feet of the MiFi device to the Internet.

A) 5
B) 10
C) 20
D) 30

Question 48

Any Wi-Fi certified device will always be able to connect to ____ access point.

A) only an 802.11g
B) only an 802.11a
C) any 802.11
D) none of the above

Question 49

A collection of devices connected via Bluetooth technology is called a(n) ____.

A) wireless mesh
B) bundle
C) IrDA-net
D) piconet

Question 50

The connection of your smartphone to your wireless headset is an example of a(n) ____.

A) personal area network
B) local area network
C) WWAN
D) access point network

Question 51

A ____ access point makes it possible to connect any wireless device to the same access point.

A) flex band
B) hi-fi band
C) multiple band
D) channel band

Question 52

Unlike WLAN technology, Bluetooth requires ____ access point(s) for communication.

A) 0
B) 1
C) 2
D) up to 8

Question 53

Using ____ technology, you can wirelessly beam information at up to 4 Mbps from one device to another compatible device using infrared light waves.

A) xray
B) gamma spectrum
C) infrared
D) air-compress

Question 54

Though promoted by many companies, Bluetooth technology is officially owned by ____.

A) Ericsson
B) Intel
C) nobody
D) Lexus

Question 55

The MiFi device is produced by the company ____.

A) Nokia
B) AT&T
C) Samsung
D) Novatel

Question 56

In the accompanying figure, Box "C." would correctly list ____ devices per access point.

A) 8
B) 64
C) 128
D) unlimited

Question 57

In the accompanying figure, Box "B." would correctly show a range of up to ____ feet.

A) 100
B) 200
C) 300
D) 900

Question 58

A Bluetooth cell phone will also be compatible with a Bluetooth ____.

A) notebook computer
B) printer
C) both a. and b.
D) neither a. nor b.

Question 59

The advantage of a wireless mesh network is that ____.

A) it's less expensive than creating Wi-Fi hotspots
B) each node on the network is wired directly to the Internet
C) each new node added automatically configures itself to work without the use of cables
D) none of the above

Question 60

City-wide wireless networks are often called ____.

A) municipal broadband
B) Muni Wi-Fi
C) Muni-Fi
D) all of the above

Question 61

With WEP encryption, the key being used to encrypt the data is sent over the network ____ the actual data is encrypted.

A) before
B) at the same time as
C) after
D) any of the above are possible

Question 62

The coverage area for wireless broadband service will ____ the area where you can get cell phone reception.

A) always be greater than
B) always be less than
C) always be the same as
D) sometimes differ from

Question 63

A wireless router broadcasts its SSID as a means of identifying the network's ____.

A) signal strength
B) name
C) level of activity
D) security clearance

Question 64

A ____ is a user-entered key that encrypts data sent over a network.

A) codeword
B) padlock
C) tumbler
D) passphrase

Question 65

To access the Internet using a WWAN, you need a WWAN PC card and ____.

A) a MiFi device
B) an account with the appropriate cellular carrier
C) a credit card
D) access to a hotspot

Question 66

A WiMAX coverage area between the base station and devices varies based on the geography of the area, but most of these hotspots are approximately ____ square miles.

A) 5
B) 10
C) 20
D) 30

Question 67

In the accompanying figure, box "A." is connected to the WiMAX tower through a cabled network connection from a(n) ____.

A) ASP
B) ISP
C) PSI
D) IEEE

Question 68

A MAC address contains ____.

A) only digits
B) only letters
C) only symbols
D) a combination of a. and b.

Question 69

WiMAX can transmit at speeds up to ____ Mbps.

A) 70
B) 100
C) 120
D) unlimited

Question 70

By default, most wireless networks are ____.

A) secured by WEP
B) password-locked
C) unsecured
D) secured by WPA or WPA2

Question 71

According to the text, ____ is a company that provides subscription-based Wi-Fi service for visitors at many U.S. airports.

A) Boingo
B) BoGo
C) Boink!
D) BuyandGo

Question 72

Many devices have been capable of making wireless Internet connections since ____.

A) 1991
B) 1995
C) 1999
D) 2003

Question 73

____ is a standard that was developed by the Wi-Fi Alliance to address some of the inherent weaknesses in WEP.

A) WEPX
B) WEP2
C) WAP
D) WPA

Question 74

Encryption keys are generally ____ or ____ bits long.

A) 16, 64
B) 64, 128
C) 128, 256
D) 64, 256

Question 75

Currently, WWANs provide wireless connections to the Internet using ____ networks created by cellular phone carriers.

A) 1G, 2G, and 3G
B) 3G only
C) 3G and 4G
D) none of the above; WWAN doesn't work with cellular technology

Question 76

If you have both WPA and WEP available to you, your system will be most secure if you use ____.

A) WPA only
B) WEP only
C) both a and b
D) neither a nor b

Question 77

The following is an example of hacking: ____.

A) Unauthorized access to information being sent over a wireless network
B) Malware
C) Viruses
D) Spoofed apps

Question 78

WiMAX ____ Wi-Fi.

A) transmits at the same radio spectrum as
B) provides less range than
C) uses infrared for communication, unlike
D) none of the above

Question 79

Each manufacturer of network interface cards adds a(n) ____ to identify the device.

A) Media Access Control address
B) Ethernet port
C) wireless mesh
D) WiMAX account

Question 80

WiMAX stands for ____.

A) Worldwide Internet Media Access
B) Worldwide Interoperability for Microwave Access
C) Wi-Fi to the Maximum
D) Web Interactivity for Maximum Access