Question : The database in which records are organised in a tree-like structure is:
Option 1: Network database
Option 2: Hierarchical database
Option 3: Relational database
Option 4: Object-oriented database
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Correct Answer: Hierarchical database
Solution : The correct answer is a Hierarchical database.
A hierarchical database is a database in which the records are organised in a tree-like structure. Data in a hierarchical database is organised in a parent-child relationship, identical to tree branches. A hierarchy or tree structure is created by linking each record or data segment to one or more child records. IBM pioneered tree-like databases at the end of the 1960s.
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