Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) ICT Computer Literacy

In computers, a DVD-ROM is: 

1
an optical storage media and it can be written many times.
2
a magnetic storage media and it can be written only once.
3
an optical storage media and it can be written only once.
4
a magnetic storage media and it can be written many times. 
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