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Question

The number of records contained within a block of data on magnetic tape is defined by the _______________.

A
Block definition
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B
Record contain clause
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C
Blocking factor
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D
Record per block factor
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E
None of the above
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Solution

The correct option is B Blocking factor

The number of records contained within a block of data on magnetic tape is defined by the Blocking factor.

In computing (specifically data transmission and data storage), a block, sometimes called a physical record, is a sequence of bytes or bits, usually containing some whole number of records, having a maximum length, a block size.

blocking factor: The number of records in a block. Note: The blocking factor is calculated by dividing the block length by the length of each record contained in the block. If the records are not of the same length, the average record length may be used to compute the blocking factor. Synonym grouping factor.


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