Suppose that a disk unit has the following parameters: seek time s = 20 msec;rotational delay rd = 10 m sec;block transfer time btt = 1 m sec;block size B = 2400 bytes;interlock gap size G = 600 bytes. An EMPLOYEE file has the following fields: SSN, 9 bytes;LASTNAME, 20 bytes;FIRSTNAME, 20 bytes;MIDDLE INIT, 1 byte;BIRTHDATE, 10 bytes;ADDRESS, 35 bytes);PHONE, 12 bytes);SUPERVISORSSN, 9 bytes;DEPARTMENT, 4 bytes;JOBCODE, 4 bytes;deletion marker, 1 byte. The EMPLOYEE, file has r = 30000 STUDENT records, fixed-length format, and unspanned blocking. Write down appropriate formulas and calculate the following values for the above EMPLOYEE No: (a) The record size R (including the deletion marker) (b) Calculate the blocking factor bfr. (c) Calculate the wasted space in each disk block because of the unspanned organization. Suppose that a disk unit has the following parameters: seek time s = 20 msec;rotational delay rd = 10 m sec;block transfer time btt = 1 m sec;block size B = 2400 bytes;interlock gap size G = 600 bytes. An EMPLOYEE file has the following fields: SSN, 9 bytes;LASTNAME, 20 bytes;FIRSTNAME, 20 bytes;MIDDLE INIT, 1 byte;BIRTHDATE, 10 bytes;ADDRESS, 35 bytes);PHONE, 12 bytes);SUPERVISORSSN, 9 bytes;DEPARTMENT, 4 bytes;JOBCODE, 4 bytes;deletion marker, 1 byte. The EMPLOYEE, file has r = 30000 STUDENT records, fixed-length format, and unspanned blocking. Write down appropriate formulas and calculate the following values for the above EMPLOYEE No: (a) The record size R (including the deletion marker) (b) Calculate the blocking factor bfr. (c) Calculate the wasted space in each disk block because of the unspanned organization