Database Systems Practice Test 155

Data Storage and Querying Quiz PDF: Questions and Answers - 155

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Data Storage and Querying Questions and Answers PDF Download: Quiz 155

MCQ 771: The storage manager is basically responsible for

A) Storing data

B) Retrieving data

C) Updating data

D) All of the Above

MCQ 772: The 2000s period saw a significant growth in use of

A) Relational database systems

B) Open-source database systems

C) Semi-structured database systems

D) Entity-relationship database systems

MCQ 773: DML stands for

A) Data modelling language

B) Data Modification language

C) Data Monitoring Language

D) Data Manipulation Language

MCQ 774: In an E-R diagram, based on UML, the entity sets are represented by a

A) Rectangle Box

B) Square Box

C) Circle

D) Triangular box

MCQ 775: In contemporary databases the top level of the hierarchy includes

A) Catalogs

B) Schemas

C) Both A and B

D) Environments

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