Multiple choice technology databases

What is the retrieval sequence in IMS DB?

  1. Top to Bottom, Front to back, Left to right

  2. Front to back, Left to right, Top to Bottom

  3. Left to right, Top to Bottom, Front to back

  4. Left to right, Front to back, Top to Bottom
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A Correct answer
Explanation

IMS databases use hierarchical data models where retrieval follows a specific sequence: top to bottom within the hierarchy, front to back among twins (segments with the same parent), and left to right across the tree structure. This deterministic order ensures predictable navigation through the database hierarchy.

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