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Computer Networking

Computer Networking
What is the frequency range of the IEEE 802.11a standard?

2.4GHz
2.4Gbps
5GHz
5Gbps

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Computer Networking
Which of the following is an advantage to using fiber optics data transmission?

fast data transmission rate
few transmission errors
All of these
low noise level
resistance to data theft

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Computer Networking
How many digits of the DNIC (Data Network Identification Code) identify the country?

first six
first three
None of these
first five
first four

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Computer Networking
00 represents a pixel that pixel is known as :

White pixel
Light gray
Black pixel
Dark gray pixel

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Computer Networking
How many digits of the Network User Address are known as the DNIC (Data Network Identification Code)?

first four
first three
first seven
first five
None of these

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Computer Networking
Which of the following communications service provides message preparation and transmission facilities?

Teletex
Fax
Teletext
None of these
x400

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