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Computer Networks Final Exam Study Questions and Answers
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Computer Networks Final Exam Study Questions and Answers
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Computer Networks Final Exam StudyQuestions and Answers
What is the lowest layer of the OSI model at which wired and wireless transmissions
share the same protocols?
a. Layer 4
b. Layer 3
c. Layer 2
d. Layer 1 - Answer-b. Layer 3
Which one of the following wireless transmission types does NOT require a clear LOS
to function?
a. Satellite
b. Infrared
c. Wi-Fi
d. WiMAX - Answer-c. Wi-Fi
Which Bluetooth class has the highest power output?
a. Class 1
b. Class 2
c. Class 3
d. NFC - Answer-a. Class 1
A hacker takes advantage of a Bluetooth connection to send a virus to a user's phone.
What kind of security breach has occurred?
a. Data breach
b. Bluejacking
c. War driving
d. Bluesnarfing - Answer-b. Bluejacking
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?
a. Bluetooth
b. WiMAX
c. NFC
d. Infrared - Answer-c. NFC
A student has completed his part of a group research paper, and needs to share it with
a classmate. He sees the classmate as they're crossing the parking lot between
, classes. Which WLAN architecture could they use to transfer the file from one laptop to
the other?
a. Ad hoc
b. Mesh
c. Star
d. Infrastructure - Answer-a. Ad hoc
Which 802.11 standard can be used in both the 2.4-GHz and the 5-GHz bands?
a. 802.11g
b. 802.11n
c. 802.11b
d. 802.11a - Answer-b. 802.11n
Which Carrier Sense technology is used on wireless networks to reduce collisions?
a. CSMA/CD
b. 802.3
c. 802.11
d. CSMA/CA - Answer-d. CSMA/CA
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?
a. Rogue access point
b. War driving
c. Bluesnarfing
d. Hidden node - Answer-a. Rogue access point
You just settled in for some study time at the local coffee shop, and you pause long
enough to connect your computer to the Wi-Fi so you can listen to some music while
you study. As you're about to sign in, you realize you clicked on an SSID called "Free
Coffee and Internet." What kind of security trap did you almost fall for?
a. Guest network
b. Bluejacking
c. Evil twin
d. Brute force attack - Answer-c. Evil twin
To exchange information, two antennas must be tuned to the same _______________.
- Answer-frequency
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