Related Questions

A data element in a record, that uniquely distinguishes the record, from all other records, is called
Consider a company that assembles computers. The probability of a faulty assembly of any computer is p. The company therefore subjects each computer to a testing process. This testing process gives the correct result for any computer with a probability of q. What is the probability of a computer being declared faulty?
Before a disk drive can access any sector record, a computer program has to provide the record's disk address. What information does this address specify?
The term _____ is sometimes used to refer to a data file in which all the records have the same record format, that is, the same field names, field lengths, and data types.
The files stored on a secondary stage device are composed of a hierarchy of data. What does a record in a file contain?
What is a type of virus that spreads itself, not just from file to file, but from computer to computer via e‐mail and other Internet traffic?
The technique, for sharing the time of a computer among several jobs. Which switches jobs so rapidly such that each job appears to have the computer to itself:
When storage space is scarce and physical records cannot span pages, creating multiple physical records from one logical relation will minimize wasted storage space.
Which of the following storage and retrieval methods would be well suited to your processing requirements if you only need to retrieve records one at a time and there is no fixed pattern to the requests for data and records?
Which of the following file organizations is most efficient for a file with a high degree of file activity?