Select the correct word to complete the sentence:

"_____ developed by the National Science Foundation, evolved into the modern Internet backbone structure."

A. UNIVAC
B. Pentium
C. Telenet
D. NSFNET



Answer :

Final answer:

The NSFNET developed by the National Science Foundation is integral to the modern Internet backbone structure.


Explanation:

NSFNET, developed by the National Science Foundation, evolved into the modern Internet backbone structure. It grew out of embryonic networks such as the Defense Department's Advanced Research Projects Agency Network (ARPANET) and the National Science Foundation's NSFNet. The Internet, now connecting over 4 billion users worldwide, is a network of networks enabling various online activities.


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