How many processes will be in the ready queue at time 5ms (on timeline) if the FCFS is applied to the following processes? Process Arrival time Burst time P1 0 4. P2 3 2 P3 4. 3 P4 6 2 O No processes o One process Two processes Three processes One of the following implies that a system can perform more than one task simultaneously: O Data coherency O Concurrency Parallelism O Task splitting limits the number of times that other processes allowed to enter their critical sections after a process has made a request to enter its critical section and before that request is granted Busy waiting Mutual exclusion Bounded waiting Spinlock