31. Which of the following will not eliminate the ambiguities of a null value ?

1. 1. Define the attribute as required

   
   
   

   2. Define subtypes

   
   
   

   3. Define each attribute as having an initial value that is recognised as blank

   
   
   

   4. Define super types

   
   
   

   5. None of the above

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: D

   NA

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32. Which of the following statements is true ?

1. 1. Logical design is software dependent.

   
   
   

   2. In a distributed database, database is stored in one physical location

   
   
   

   3. Conceptual design translates the logical design into internal model.

   
   
   

   4. Logical design is software independent.

   
   
   

   5. None of the above

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: E

   NA

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33. In an ER diagram, attributes are represented by

1. 1. rectangle

   
   
   

   2. square

   
   
   

   3. ellipse

   
   
   

   4. triangle

   
   
   

   5. circle

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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34. DBMS ic comprised of tables that made up of rows called ...... and columns called ............

1. 1. fields, records

   
   
   

   2. records, fields

   
   
   

   3. address, fields

   
   
   

   4. ranges, sheet

   
   
   

   5. records, ranges

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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35. A database that contains tables linked by common fields is called a

1. 1. centralised database

   
   
   

   2. flat file database

   
   
   

   3. relational database

   
   
   

   4. All of these

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: C

   NA

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