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UPSC Prelims GS - 2022
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Question 31
MEDIUM
Correct:
+2
Incorrect:
-2
Consider the following:
1. Aarogya Setu
2. CoWIN
3. DigiLocker
4. DIKSHA
Which of the above are built on top of open-source digital platforms?
a
1 and 2 only
b
2, 3 and 4 only
c
1, 3 and 4 only
d
1, 2, 3 and 4
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Section-1
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