Suppose that a disk unit has the following parameter: block size B = 1200 bytes Consider a STUDENT file with the following fields: NUMBER, 10 bytes; • LASTNAME, 20 bytes; FIRSTNAME, 20 bytes; BIRTHDATE, 10 bytes; The STUDENT file has r=10000 STUDENT records, fixed-length format, and unspanned blocking. Calculate the following values for the STUDENT file: (a) Calculate the record size R (b) Calculate the blocking factor bfr (c) Calculate the number of disk blocks b
Suppose that a disk unit has the following parameter: block size B = 1200 bytes Consider a STUDENT file with the following fields: NUMBER, 10 bytes; • LASTNAME, 20 bytes; FIRSTNAME, 20 bytes; BIRTHDATE, 10 bytes; The STUDENT file has r=10000 STUDENT records, fixed-length format, and unspanned blocking. Calculate the following values for the STUDENT file: (a) Calculate the record size R (b) Calculate the blocking factor bfr (c) Calculate the number of disk blocks b
Programming Logic & Design Comprehensive
9th Edition
ISBN:9781337669405
Author:FARRELL
Publisher:FARRELL
Chapter7: File Handling And Applications
Section: Chapter Questions
Problem 3PE
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Suppose that a disk unit has the following parameter:
- block size B = 1200 bytes
Consider a STUDENT file with the following fields:
- NUMBER, 10 bytes; • LASTNAME, 20 bytes;
- FIRSTNAME, 20 bytes;
- BIRTHDATE, 10 bytes;
The STUDENT file has r=10000 STUDENT records, fixed-length format, and unspanned blocking. Calculate the following values for the STUDENT file:
(a) Calculate the record size R
(b) Calculate the blocking factor bfr
(c) Calculate the number of disk blocks b
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