Question 1

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

Accepted Answer

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

Question 2

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

Accepted Answer

This is correct, a wireless router or access point does broadcast its SSID to identify the network's name.

Question 3

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

Accepted Answer

A device configured for 802.11a uses a different frequency band (5 GHz) than one configured for 802.11b (2.4 GHz), so they are not directly compatible. However, most modern devices support multiple 802.11 standards (such as 802.11a/b/g/n/ac), allowing them to communicate with each other through a shared standard.

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.

Accepted Answer

An "evil twin" attack involves setting up a fraudulent Wi-Fi access point that mimics the appearance of a legitimate one to trick users into connecting to it, thereby allowing the attacker to intercept sensitive data.

Question 5

Bluejacking is the most dangerous threat to a Bluetooth device.

Accepted Answer

Bluejacking is not a dangerous threat to a Bluetooth device. It is a harmless practice where someone sends unsolicited messages or data to nearby Bluetooth-enabled devices. It does not cause any harm to the device, but it can be irritating to the user receiving the messages. More significant threats to Bluetooth devices include hacking, eavesdropping, and malware attacks.

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.

Accepted Answer

SMS (Short Message Service) still remains one of the most widely used and popular forms of communication methods. PCS (Personal Communications Service) is a wireless communication technology introduced in the US in the mid-1990s but it did not replace SMS.

Question 7

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

Accepted Answer

A piconet, which is a Bluetooth network, can connect up to eight devices at a time, including the master device.

Question 8

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

Accepted Answer

Infrared technology requires a direct line of sight between the transmitting and receiving devices because infrared light cannot penetrate most solid objects or bend around corners.

Question 9

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

Accepted Answer

Bluetooth devices are designed to use the same communication protocol, making them compatible with each other regardless of the brand or manufacturer. However, some features may not be available on all devices or may vary between them.

Question 10

City-wide wireless networks are often called municipal broadband.

Accepted Answer

Municipal broadband refers to city-wide wireless networks that provide internet access to residents and businesses.

Question 11

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

Accepted Answer

WWAN networking does provide wireless connections to the Internet using cellular networks provided by cellular phone carriers.

Question 12

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

Accepted Answer

Both WEP and WPA can use a 128-bit key for encryption.

Question 13

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

Accepted Answer

Phishing is actually a type of online scam where the attacker poses as a trustworthy entity in order to obtain sensitive information such as usernames, passwords, and credit card details from unsuspecting victims. It has nothing to do with driving through neighborhoods and looking for unsecured wireless networks.

Question 14

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

Accepted Answer

Bluejacking is a security problem where unwanted messages are sent to Bluetooth-enabled devices; bluesnarfing is the theft of data from Bluetooth-enabled devices without the owner's knowledge or consent; bluebugging is a security problem where an attacker gains unauthorized access to the device and can control it.

Question 15

3G wireless technology is expected to bring network connection speeds of up to 100 Mbps.

Accepted Answer

4G
Fourth-generation

Question 16

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

Accepted Answer

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

Question 17

The first wireless technology was used in 1988.

Accepted Answer

The first wireless technology was developed in the late 19th century, with early experiments in radio communication conducted in the 1890s. The first wireless network was established in the 1970s, and the first cellular network was launched in 1981.

Question 18

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

Accepted Answer

Sniffer programs are a type of hacking tool used to intercept and monitor data transmitted over wireless networks, making it possible for hackers to steal sensitive information such as passwords, credit card numbers, and other confidential data. Therefore, the statement is true.

Question 19

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

Accepted Answer

Every network interface card is assigned a unique MAC address by the manufacturer.

Question 20

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

Accepted Answer

Wired Equivalent Privacy (WEP) is the security protocol for wireless LANs that encrypts data sent over the network, not Wired Passphrase Encryption (WPE).

Quiz 7: Wireless Networking