Computer Networking
Which of the following is a wrong example of network layer?

X.25 level 2-ISO
X.25 Packet Level Protocol (PLP)-ISO
Internet Protocol (IP) - ARPANET
Source routing and domain naming-USENet

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Computer Networking
A proposed network infrastructure of interconnected local, regional, and global networks that would support universal interactive multimedia communications. Select the best fit for answer:

Client/Server networks
Internetworked enterprise
Business applications of telecommunications
None of these
Information super highway

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Computer Networking
A WATS arrangement

is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
is never less expensive than flat-rate service
is less expensive than flat-rate service only when the number of calls is small and the duration of each is long
None of these
is always less expensive than flat-rate service

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