What are the main advantages of the Linux operating system?

Which of the following is an example of a real-time operating system (RTOS)?

Concurrent access to shared data may result in ________.

What is the preferred method of encryption?

When a process is in the "Blocked" state waiting for an I/O service, which state does it go to after the service is completed?

The processes that are residing in main memory and are ready and waiting to execute are kept on a list called _____________

What is the main task of the long-term scheduler in an operating system?

The minimum number of frames to be allocated to a process is decided by the instruction set architecture

A CPU generates 32-bit virtual addresses. The page size is 4 KB. The processor has a translation look-aside buffer (TLB) which can hold a total of 128 page table entries and is 4-way set associative. What is the minimum size of the TLB tag?

Consider a demand paging system with four page frames (initially empty) and LRU page replacement policy. For the following page reference string 

7,2,7,3, 2,5,3, 4,6,7,7,1,5,6,1

the page fault rate, defined as the ratio of number of page faults to the number of memory accesses (rounded off to one decimal place) is