ICT 285 Quiz 8 | Questions and Answers Latest Updated 2026 (Graded A+) - Murdoch University

ICT 285 Quiz 8 | Questions and Answers Latest Updated 2026
(Graded A+) - Murdoch University




Question 1
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The Heap file organisation is an efficient structure for
Select one:

a. Range searches




c. Bulk uploading of data

,Correct

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A b+tree index is good for retrieval based on:




c. Range matching




e. The b+tree index is good for retrieval based on all of these




The correct answer is: The b+tree index is good for retrieval based on all of these




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Question text

Which of the following is a useful general principle for executing a query efficiently?

, Select one:

a. Do RESTRICT operations as early as possible


b. Do the most restrictive RESTRICTs first


c. Transform Cartesian Product followed by RESTRICT into JOIN


d. Do PROJECT operations as early as possible


e. All of these are useful general principles for efficient queries




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Select one:




False