A file has r = 20,000 STUDENT records of fixed length. Each record has the following fields: NAME (30 bytes), SSN (9 bytes), ADDRESS (40 bytes), PHDNE (9 bytes), BIRTHDATE (8 bytes), SEX (l byte),...

A file has r = 20,000 STUDENT records of fixed length. Each record has the following

fields: NAME (30 bytes), SSN (9 bytes), ADDRESS (40 bytes), PHDNE (9 bytes), BIRTHDATE

(8 bytes), SEX (l byte), MAJORDEPTCODE (4 bytes), MINORDEPTCODE (4 bytes), CLASSCODE

(4 bytes, integer), and DEGREEPROGRAM (3 bytes). An additional byte is used as a deletion marker. The file is stored on the disk whose parameters are given in Exercise