QUESTION $2$: $(25$ MARKS$)$

$($a$)$ i$.$ What is the smallest storage unit of a hard drive disk $($HDD$)$

and what is its typical size in KB$?$

ii$.$ What is the smallest storage unit of a solid state drive $($SSD$)$

and what is its typical size in KB$?$

$(2$ marks$)$

$(2$ marks$)$

$($b$)$ Why is the garbage collection process important in an SSD$?(5$ marks$)$

$($c$)$ i$.$ What happens to the storage space when a user deletes a file

from an HDD$?$

ii$.$ What happens to the storage space when a user deletes a file

from an SSD$?$ Why?

$(2$ marks$)$

$(3$ marks$)$iii$.$ Explain briefly what happens to the storage space when a

user deletes a file from an SSD which has TRIM enabled?

Why?

$(5$ marks$)$

$($d$)$ Describe three main pieces information provided by the Partition

Table in the context of computer forensics?

$(3$x$2$

marks$)$