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Database Architecture & Modeling - Database Management System Objective Questions and Answers

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Database Management System objective questions and answers page contain 5 questions from chapter Database Architecture & Modeling. Each mcq has 4 possible answers. Choose your answer and check your answer with the given correct answer.
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(41) The data dictionary tells the DBMS :
[A] What files are in the database
[B] What attributes are possessed by the data
[C] What these files contain
[D] All of the above

Comment

Answer: Option [D]
(42) An association between students and courses is :
[A] 1:1 relationship
[B] 1:M relationship
[C] M:M relationship
[D] None of these

Comment

Answer: Option [C]

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(43) The database environment has all of the following components except :
[A] users
[B] separate files
[C] database
[D] database administrator

Comment

Answer: Option [B]
(44) The key to a cost-effective data input operation is :
[A] OCR equipment
[B] validity checks
[C] validation
[D] employee motivation

Comment

Answer: Option [D]
(45) Complex entities can be constructed using the following operation :
[A] SUM
[B] Union
[C] Aggregation
[D] Collection

Comment

Answer: Option [C]

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DATABASE MANAGEMENT SYSTEM MULTIPLE CHOICE QUESTIONS & ANSWERS – E-BOOK

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