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The most important advantages of the hierarchical database model is/are
(a)Conceptual simplicity, integrity, diversity and security
(b)Security, efficiency, diversity, simplicity and integrity
(c)Integrity, efficiency, diversity, independence and simplicity
(d)Conceptual simplicity, security, hierarchy
(e)Conceptual simplicity, security, independence, integrity and efficiency.
Dec 29 2017 View more View Less
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