Unit 6 Wireless Networking

What is the lowest layer of the OSI model at which wired and wireless transmissions share the same protocols?

• Layer 4

• Layer 3

• Layer 2

• Layer 1

What technology does Bluetooth use to take advantage of the 79 channels allocated to the Bluetooth band?

• ZigBee

• DSSS

• RTS/CTS

• FHSS

Which one of the following wireless transmission types requires a clear LOS to function?

• Bluetooth

• NFC

• Infrared

• Wi-Fi

Which Bluetooth class has the highest power output?

• Class 1

• Class 2

• Class 3

• They all have equal power output

A hacker takes advantage of an open Bluetooth connection to send a virus to a user’s smartphone. What kind of security breach has occurred?

• Data breach

• Bluejacking

• War driving

• Bluesnarfing

A user swipes her smartphone across a tag on a poster to obtain showtimes for a movie she wants to see later that evening. What wireless technology transmitted the data?

• NFC

• Bluetooth

• Z-Wave

• ANT+

Which 802.11 standard functions in both the 2.4-GHz and 5-GHz bands?

• 802.11g

• 802.11ac

• 802.11b

• 802.11n

Which Carrier Sense technology is used on wireless networks to reduce collisions?

• CSMA/CD

• 802.11

• CSMA/CA

• SSID

You’ve just completed a survey of the wireless signals traversing the airspace in your employer’s vicinity, and you’ve found an unauthorized AP with a very strong signal near the middle of the 100-acre campus. What kind of threat do you need to report to your boss?

• Rogue AP

• War driving

• Bluesnarfing

• Hidden node

You just settled in for some study time at the local coffee shop, and you pause long enough to connect your smartphone to the Wi-Fi so you can listen to some music while you study. As you’re about to sign in, you realize that you clicked on an SSID called “Free Coffee and Internet.” What kind of security trap did you almost fall for?

• Guest network

• Bluejacking

• Evil twin

• Brute force attack