A multiple level cache hierarchy is a necessary feature of a SuperScalar Processor O True O False Out-of-order instruction processing is a fundamental characteristic of a SuperScalar Processor O True False A SuperScalar processor pipeline with 5 ALU,1 load, and 1 store execution units will likely run the matrix multiplication benchmark code faster than one configured with only 3 ALUs, 2 load and 2 store execution units. True O False Which of the following is not. a key element or characteristics of a SuperScalar processor? 1. Multiple simultaneous instruction fetch and issue mechanisms O 2 Hardware resources for parallel execution of instructions O 3. Mechanisms for managing and controlling out-of-order instruction execution 4. Instruction Set Architecture (ISA)