Computer Networking
For connecting modem, a computer must be equipped with a port that conforms to the RS-232 standard of the Electronic Industries Association of America. What do the letters 'RS' stand for?

Recommended standard
Random sequence
None of these
Recognised standard
Registered source

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Computer Networking
UDP is:

Not a part of the TCP/IP suite
Connectionless and unreliable
None of these
Connection orientated and reliable
Connection oriented and unreliable

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Computer Networking
You are working with a network that has the network ID 10.9.0.0 and contains 73 networks. In the next year, you will be adding an additional 27 branch offices to your company. For simplified management, you want to keep the most possible hosts per subnet. Which subnet mask should you management, you want to keep the most possible hosts per subnet. Which subnet mask should you use?

255.240.0.0
255.252.0.0
255.248.0.0
255.224.0.0
255.254.0.0

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