Question

Match the following:
List -I
(P) static char var;
(Q) m = malloc(10); m = NULL;
(R) char * ptr[10];
(S) register int var1;

List- II
(i) Sequence of memory location to store addresses.
(ii) A variable located in data section of memory.
(iii) Request to allocate a CPU register to store data.
(iv) A lost memory which cannot be freed.

• A. P$\to$(ii), Q$\to$(iv), R$\to$(iii), S$\to$ (i)
• B. P$\to$(iii), Q$\to$(iv), R$\to$(i), S$\to$ (ii)
• C. P$\to$(ii), Q$\to$(i), R$\to$(iv), S$\to$ (iii)
• D. P$\to$(ii), Q$\to$(iv), R$\to$(i), S$\to$ (iii)

Answer 1

The correct option is D P$\to$(ii), Q$\to$(iv), R$\to$(i), S$\to$ (iii)

• Static char var; : Initialization of a variable located in data section of memory.
• m = malloc(10); m = NULL; : A lost memory which can't be freed because free(m) is missed in code.
• char *ptr[10]; : sequence of memory locations to store addresses.
• register int var1; : Request to allocate a CPU register to store data.