One form of this construct exhibits optimal performance with the impossible-to-implement Bélády’s algorithm. The valgrind utility is used to debug errors with this construct. Insufficient locality (-5[1])of this construct leads (10[1])to thrashing, which involves pages of it constantly (10[1])swapping. (10[2]-5[1])Calling “free” twice can lead to an incorrect access of this construct called a segfault. (10[2])Pointers (10[1])are so named for “pointing” to this construct. A form of this construct known as a cache can be used to reduce the number of reads and writes to this construct’s “random-access” form. For 10 points, name this construct whose size is measured in gigabytes. ■END■ (10[1])