Answer:lock
Explanation:its a sicuraty thing
Answer:
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(A) DARPA wanted scientists to be able to collaborate and share research easily.
The initial purpose of ARPA was to enable mainly scientific users at the connected institutions to communicate and share resources, also to be able to link computers at Pentagon-funded research institutions over telephone lines, and it became the technical foundation of the Internet.
Answer:
C. ground antennas
Explanation:
AKA Satellite Dishes That Communicate Just Like Direct Tv dish It is focused by a bowl-shaped parabolic dish onto a device in the center called a "feed horn", which channels the signal to a "low-noise block down converter" (LNB) which filters out unwanted interference, and sometimes converts it to yet another frequency before amplifying it and sending it to the satellite receiver
It would depend on the movie and the theater policy.....
Hope this helps have a good day
