[{"id":17722,"question":"Which of the following operation are adopted with data in a database system?","choices":[{"text":"Normalize","value":"A"},{"text":"Efficient","value":"B"},{"text":"Complete","value":"C"},{"text":"Unnormalize","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":17718,"question":"Data item is a","choices":[{"text":"Files","value":"A"},{"text":"Small unit","value":"B"},{"text":"Information","value":"C"},{"text":"Record","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":17716,"question":"Which of the following is correct for data in a database system?","choices":[{"text":"Inconsistent","value":"A"},{"text":"Redundant","value":"B"},{"text":"Integrated","value":"C"},{"text":"Normal","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":17711,"question":"Retrieval of information with database is","choices":[{"text":"Slow","value":"A"},{"text":"Normal","value":"B"},{"text":"Faster","value":"C"},{"text":"Both a and b","value":"D"},{"value":"E"}],"correctAnswer":3},{"id":17708,"question":"Information is stored with","choices":[{"text":"Maximum repetitions","value":"A"},{"text":"Minimum repetitions","value":"B"},{"text":"Repetitions","value":"C"},{"text":"None of these","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":17705,"question":"Data base is a collection of","choices":[{"text":"Data","value":"A"},{"text":"Information","value":"B"},{"text":"Files","value":"C"},{"text":"All of these","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17702,"question":"Which of the following type of file requires largest processing time?","choices":[{"text":"Sequential file","value":"A"},{"text":"Random file","value":"B"},{"text":"Indexed sequential file","value":"C"},{"text":"Direct access file","value":"D"},{"value":"E"}],"correctAnswer":1},{"id":17698,"question":"Which of the following data model is more flexible?","choices":[{"text":"Network data model","value":"A"},{"text":"Hierarchical data model","value":"B"},{"text":"Relational data model","value":"C"},{"text":"Object data model","value":"D"},{"value":"E"}],"correctAnswer":4},{"id":17694,"question":"Which of the following represents a collection of concepts that are used to describe the structure of a database?","choices":[{"text":"Data warehouse","value":"A"},{"text":"Data model","value":"B"},{"text":"Data structure","value":"C"},{"text":"Data type","value":"D"},{"value":"E"}],"correctAnswer":2},{"id":17692,"question":"To execute UNDO command you should:","choices":[{"text":"Press CTRL + Z","value":"A"},{"text":"Select UNDO from the Edit menu","value":"B"},{"text":"Click UNDO icon on the standard toolbar","value":"C"},{"text":"Any of the above","value":"D"},{"value":"E"}],"correctAnswer":4}]