Final answer:
The value of ia[0] is 1.
Step-by-step explanation:
The value of ia[0] can be determined by examining the given code snippet. The snippet declares an array ia of size 2 and a pointer variable ip. The pointer ip is assigned the address of the first element of ia. The elements of ia are then initialized with the values 1 and 2. The expression *(ip + 1) dereferences the pointer ip and adds 1 to its index. This value is then assigned to the second element of ia. Therefore, the value of ia[0] remains unchanged and is still equal to 1.