Computer Networking
The fundamental requirements of private-to-public network interconnection methods which need to be provided in gateways is/are

adequate cost control mechanisms for administration of the private networks
universal accessibility for private network Data Terminal Equipment (DTE)
to assign address to private network DTEs
None of these
A and B both

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Computer Networking
Bulletin board system

is a modem capable of accepting commands
converts analog signals to digital signals
is a public access message system
None of these
converts digital signals to analog signals

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