56. The code that relational database management systems use to perform their database task is referred to as

1. 1. QBE

   
   
   

   2. SQL

   
   
   

   3. OLAP

   
   
   

   4. Sequel Server

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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57. In which the database can be restored up to the last consistent state after the system failure ?

1. 1. Backup

   
   
   

   2. Recovery

   
   
   

   3. Redundancy

   
   
   

   4. Security

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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58. The cardinality property of a relation, refers to the

1. 1. number of database

   
   
   

   2. number of columns

   
   
   

   3. number of rows

   
   
   

   4. number of tables

   
   
   

   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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59. The smallest unit of information about a record in a database is called a

1. 1. cell

   
   
   

   2. field

   
   
   

   3. record

   
   
   

   4. query

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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60. ......... means that the data contained in a database is accurate and reliable.

1. 1. Data redundancy

   
   
   

   2. Data integrity

   
   
   

   3. Data reliability

   
   
   

   4. Data consistency

   
   
   

   5. None of these

   
   
   

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1. View Hint View Answer Discuss in Forum

   NA

   Correct Option: B

   NA

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