ADITYA KISHOR
from
dps, gaya
(A) (B) (C) (D)
Ans 1:
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Ans 2:
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Ans 3:
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Ans 6:
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Ans 7:
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Ans 9:
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Ans 10:
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Ans 12:
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Class : Class 7
the answer is magnetic tape because in magnetic tape the information is encrypted magnetically