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Which cable realizes noise protection with the use of foil shielding?
A. A cable transmitting signals between 15 and 20 kHz
B. A cable transmitting signals between 10 and 15 kHz
C. A cable transmitting signals between 5 and 10 kHz
D. A cable transmitting signals between 0 and 5 kHz - Correct Answer -
A. A cable transmitting signals between 15 and 20 kHz


Which type of waves are used in Bluetooth transmission?
A. Low-power radio waves
B. High-power radio waves
C. Low-power ultraviolet waves
D. High-power ultraviolet waves - Correct Answer -A. Low-power radio
waves


Which waves have higher frequencies than infrared transmission
frequencies?
A. Visible light waves



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,B. Microwaves
C. Radio waves
D. Electromagnetic waves - Correct Answer -A. Visible light waves


What is the wireless service that enables people to have access to mobile
internet?
A. Bluetooth
B. Ethernet
C. Wireless Application Protocol (WAP)
D. Cellular Digital Packet Data (CDPD) - Correct Answer -D. Cellular
Digital Packet Data (CDPD)


Which wireless security feature hides the contents of network packets to
ensure data can be transmitted over a wireless network safely?
A. Intrusion detection system
B. Application gateway
C. Authentication
D. Encryption key - Correct Answer -D. Encryption key


Which multiplexing technique transmits each signal from one input
source via a single time slot through the creation of different slots?
A. Synchronous time-division multiplexing
B. Asynchronous time-division multiplexing


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,C. Integrated Services Digital Network (ISDN) multiplexing
D. Transmission System 1 multiplexing - Correct Answer -A.
Synchronous time-division multiplexing


Which category of multiplexing randomly allocates time slots to
different data signals depending on the rate at which they are being
generated from the source?
A. Asynchronous time-division multiplexing
B. Synchronous time-division multiplexing
C. Dense wavelength-division multiplexing
D. Code-division multiplexing - Correct Answer -A. Asynchronous
time-division multiplexing


Which type of modem has been branded as a broadband device?
A. Cable modem
B. 56k modem
C. CSU/DSU modem
D. Satellite modem - Correct Answer -A. Cable modem


A network administrator is asked to provide a single private /24 subnet
for a new network segment from the company address management tool.
Which classless inter-domain routing (CIDR) notation will be used to
represent a private /24 subnet?
A. 10.0.0.0 255.255.255.0

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, B. 192.168.1.0 255.255.255.255
C. 8.10.120.0 255.255.255.0
D. 10.0.0.0 255.255.255.128 - Correct Answer -A. 10.0.0.0
255.255.255.0


Two computers need to be directly connected within a network.
Which Ethernet cable should be used to connect the computers?
A. Straight-through
B. Coaxial
C. Fiber-optic
D. Category 3 - Correct Answer -A. Straight-through


A student is researching how personal devices connect to other devices
using Bluetooth technology.
Which IEEE standard working group can the student reference to learn
more about Bluetooth connections?
A. 802.15
B. 802.35
C. 802.18
D. 802.24 - Correct Answer -A. 802.15


Which IEEE 802.11 wireless standard has the highest data rate?
A. 802.11a

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