Question

Match the following

a)CR0 1)Removes free pages from a linked list
b)CR3 2) Enable paging
c)kalloc( ) 3) Page directory point register
d)kfree( ) 4) Add free pages to a linked list

Answer 1

Answer:

a - 2 , b - 3, c - 4, d - 1

Explanation:

Solved matched the following as below :-

a) CR0 -> 2) Enable paging

b) CR3 -> 3) Page directory point register

c) kalloc( ) ->  4) Add free pages to a linked list

d) kfree( ) -> 1)Removes free pages from a linked list

Answer 2

a) 'CR0' 1)'Removes free pages' from a 'linked  list'

b) 'CR3'  2) 'Enable paging'  

c) 'kalloc( )' 3) 'Page directory point register'

d) 'kfree( )' 4) 'Add free pages to a linked list'

Explanation:

The ‘CR0 & CR3’ are ‘control registers in x64 series’.

‘kalloc & kfree’ are routines used to dynamically request ‘pointer-aligned chunks of memory’.

The following is the required match list for the above set:

a) 'CR0' match with 2) Enable paging

b) 'CR3' match with 3) Page directory point register

c) 'kalloc( )' match with 4) 'Add free pages to a linked list'

d) 'kfree( )' match with 1) 'Removes free pages' from a linked list