Consider a disk with block size $=4096$ bytes. A file has $100,000$ records of fixed length.

Each record has the following fields and byte size: Name $(30),$ Ssn $(9),$ Dept $(9),$ Address

$(40),$ Phone $(10),$ Bdate $(8),$ Sex $(1),$ Job $(4),$ Salary $(4)$ and Info$(80).$ An additional byte is

used as a deletion marker.

a$)$ Calculate the record size R in bytes

b$)$ Calculate the blocking factor and the number of file blocks needed to store the data,

assuming an unspanned organization.

c$)$ Now, if the Info field was a $6-$byte pointer to the string data, what is the blocking factor

for this revised record layout?