Database Management System Practice Test 44

Database Constraints and Relational Schemas Multiple Choice Questions (MCQ) PDF - 44

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Database Constraints & Relational Schemas Questions and Answers PDF Download: Quiz 44

MCQ 216: The multi-valued dependencies and functional dependencies are classified as category of

A) relation dependencies

B) data dependencies

C) entity dependencies

D) attribute dependencies

MCQ 217: In the statement DECIMAL (I, j) to specify numeric data type, the digits after the decimal point are called

A) the precision

B) the scale

C) the string

D) the numeric strip

MCQ 218: The module of DBMS which focuses on eliminating redundancies, operations reordering and rearrangements is classified as

A) schema optimizer

B) query optimizer

C) interface optimizer

D) graphical optimizer

MCQ 219: The model in which the multi-valued and composite attributes is considered as

A) reverse relational model

B) flat relational model

C) parallel relational model

D) circular relational model

MCQ 220: The time which is needed for consecutive blocks transferring is classified as

A) rotational delay

B) bulk transfer rate

C) reel time

D) seek time

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