Database Systems Exam MCQs – Practice Test 28 (Chapter 4)

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Database Design and ER Model MCQs – Practice Test 28 PDF Download

MCQ 136: Translation of requirements into a conceptual schema of the database, can be achieved by applying the concepts of:

Chosen Data model
Chosen techniques
Chosen programming languages
Chosen Datatypes

MCQ 137: The type of constraint that relates to more than one lower-level entity set within a single generalization, is said to be:

System-defined
Condition-defined
Data-defined
User-defined

MCQ 138: Total generalization can be specified in an E-R diagram by adding the keyword of:

All
Whole
Complete
Total

MCQ 139: The two performance metrics i.e. throughput and response time are:

Equivalent
Not equivalent
Dependent
Complex

MCQ 140: For the formation of a unique attribute name, the role name is used instead of the name of:

Locator
Index
Identifier
Entity set

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