What are two common types of user interfaces for processing input commands? Choose 2 answers O GUI O IPC OPCI O CLI O USB What dictates how long the CPU timer is to be set for a user? OOOO User program Mechanism O Policy Flexibility What is defined as a small piece of code that locates the kernel, loads it into the main memory, and starts its execution? A boot block A bootstrap program A module loader A system monitor What is an allowable process state? New Paged Reload Swapped Which section of the process control block (PCB) saves the information of process priority? The CPU-scheduling information O The process state The accounting information The I/O status