One TB (Tera Byte) approximately occupies or comprises which of the following data or space size
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 1000 GB
Storage units go up in steps of \(2^{10}=1024\), which is about 1000: 1 KB = 1024 bytes, 1 MB = 1024 KB, 1 GB = 1024 MB and 1 TB = 1024 GB. So one terabyte is approximately 1000 GB (in the decimal count used by disk makers it is 1000 GB to begin with).
Why the other options are incorrect
Option (1) 1000 KB — Incorrect. About 1 MB, a million times smaller than a terabyte.
Option (3) 1024 KB — Incorrect. Equal to 1 MB.
Option (4) 1024 MB — Incorrect. Equal to 1 GB; a terabyte is 1024 such gigabytes.