Introduction to Database System An audit trail is used to make back-up copies All of the listed here is the recorded history of operations performed on a file can be used to restore lost information is used to make back-up copies All of the listed here is the recorded history of operations performed on a file can be used to restore lost information ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A relation is in 5NF when multivalued dependencies are isolated in their own relation. True False True False ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System A large computer information system maintains many different computer files. Which amongst them is called a perpetual file? Log file Master file Update file Specialized file Log file Master file Update file Specialized file ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Which of the following is a serious problem of file management systems? difficult to update data redundancy All of these program dependence lack of data independence difficult to update data redundancy All of these program dependence lack of data independence ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Data encryption techniques are particularly useful for reducing storage space requirements All of these improving data integrity protecting data in data communication systems None of these reducing storage space requirements All of these improving data integrity protecting data in data communication systems None of these ANSWER DOWNLOAD EXAMIANS APP
Introduction to Database System Embedded pointer provide a secondary access path a physical record key an inverted index All of these None of these a secondary access path a physical record key an inverted index All of these None of these ANSWER DOWNLOAD EXAMIANS APP
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