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Database Systems Practice Test 274

Extended ER Features MCQ (Multiple Choice Questions) PDF - 274

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Extended ER Features Questions and Answers PDF Download: Quiz 274

MCQ 1366: A subclass also inherits participation in the relationship sets in which its superclass is

A) Called
B) Invoked
C) Participating
D) Executing

MCQ 1367: A superkey may contain extraneous

A) Attributes
B) Keys
C) Instances
D) Entries

MCQ 1368: We can write 'relation A contains relation B' as

A) exists (B except A)
B) exists (A except B)
C) notexists (A except B)
D) notexists (B except A)

MCQ 1369: High throughput can be obtained by system component's

A) Low utilization
B) High utilization
C) Low responses
D) High responses

MCQ 1370: Any database modification that would cause a null to be inserted in an attribute declared to be not null generates an

A) Exception
B) Rejection
C) Output
D) Error

Database Systems Exam Prep Tests

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Extended ER Features App (Android & iOS)

Extended ER Features App (Android & iOS)

Database Management System App (Android & iOS)

Database Management System App (Android & iOS)

Computer Networks App (Android & iOS)

Computer Networks App (Android & iOS)

Operating Systems App (Android & iOS)

Operating Systems App (Android & iOS)