What is a data structure?

 a) kernel remains in the memory during the entire computer sessionb) kernel is made of various modules which can not be loaded in running operating systemc) kernel is the first part of the operating system to load into memory during bootingd) kernel is the program that constitutes the central core of the operating system

a) every system in the networkb) serverc) both server and every system in the networkd) none of the mentioned

a) multiprogramming operating systemsb) larger memory sized systemsc) multiprocessor systemsd) none of the mentioned

a) process scheduling can be done only onceb) all processes have the same priorityc) kernel is not requiredd) a task must be serviced by its deadline period