Match the following :
2026
Match the following :
- A.
I–L, II–M, III–N
- B.
I–M, II–L, III–N
- C.
I–N, II–M, III–L
- D.
I–L, II–N, III–M
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Show answer & explanation
Correct answer: C
The correct matching is based on the Three-Schema Architecture of a Database Management System.
1. External Schema (III): This level describes the user views. It matches with L: Views.
2. Logical Schema (I): This level describes the structure of the whole database, typically using relations. It matches with N: Relations.
3. Physical Schema (II): This level describes how data is stored, including file organization and indexes. It matches with M: File organization and indexes.
Therefore, the correct matching is I–N, II–M, III–L.
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