Final answer:
The memory queue is controlled by its size attribute.
Step-by-step explanation:
The memory queue is controlled by its size attribute. The size of the memory queue determines the number of memory operations that can be stored in the queue at any given time.
For example, if the size of the memory queue is set to 8, it means that the queue can hold up to 8 memory operations. Any additional operations beyond this limit will have to wait until there is space available in the queue.