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Chapter 3 · SoftwarePractice
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CONCEPT PRACTICE

Folding and adding record keys

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2025 Autumn · Subject A · Q14

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Q14. In indirect addressing of direct file organization, which of the following is an appropriate method for calculating the record address from a record key in the superposition addressing method, or folding and adding method? Here, the record key is 123456 in decimal. The total number of records is 1,000, and the closest prime number to 1,000 is 997. The decimal number 123456 is equivalent to 361100 in octal.

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Source: 2025A_FE-A_Questions.pdf, PDF page 10. ID: 2025A-A-Q014. Explanation written for this textbook.

Original question · Q14
Q14. In indirect addressing of direct file organization, which of the following is an appropriate method for calculating the record address from a record key in the superposition addressing method, or folding and adding method? Here, the record key is 123456 in decimal. The total number of records is 1,000, and the closest prime number to 1,000 is 997. The decimal number 123456 is equivalent to 361100 in octal.

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