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Computer Fundamentals - Engineering

Q1:

Which of the following file organizations is most efficient for a file with a high degree of file activity?

A sequential

B ISAM

C VSAM

D B-Tree index

E All of the above

ANS:A - sequential

ISAM (Indexed Sequential Access Method) is a file management system developed at IBM that allows records to be accessed either sequentially (in the order they were entered) or randomly (with an index), so as per the definition, for a file with a high degree of file activity ISAM is more efficient than Sequential Access Method. B/c ISAM contains both Access methods.