What is the difference between char a[] = ?string?; and char *p = ?string?;?

Question

As the heading says, What is the difference between

char a[] = ?string?; and 
char *p = ?string?;  

This question was asked to me in inter

Answer 1

char a[] = "string";

This allocates the string on the stack.

char *p = "string";

This creates a pointer on the stack that points to the literal in the data segment of the process.

? is whoever wrote it not knowing what they were doing.