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CBSE Class 12 Computer Science Question 1 of 91

Relational Database and SQL — Question 1

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Question 1

Assertion (A): In hierarchical model, searching for a record is a time-consuming task.

Reasoning (R): Hierarchical model owns to the organization of information/data in a tree-like structure.

  1. Both A and R are true and R is the correct explanation of A.
  2. Both A and R are true but R is not the correct explanation of A.
  3. A is true but R is false.
  4. A is false but R is true.
Answer

Both A and R are true and R is the correct explanation of A.

Explanation
The hierarchical model arranges data in a tree structure, where each record has a parent-child relationship. Searching for a specific record in such a model may require traversing through multiple levels of the hierarchy, which is time-consuming.