In the following question answer A, B, C, D depending on when the errors are detected?
Accessing an illegal memory location
A. if no error is detected
B. if semantic and syntactic checking
C. if during Code generation & Symbol allocation
D. run time
How many page faults will occur for below sequence of pages when LRU page replacement algorithm is used (The memory can only have 3pages): 1,2,3,4,2,1,5,2,4 (something like that)
If a CPU has 20 address lines but MMU does not use two of them. OS occupies 20K. No virtual memory is supported. What is the maximum memory available for a user program?
Which of the following can be zero?
A. swap space
B. physical memory
C. virtual memory
What is a must for multitasking?
A. Process preemption
B. Paging
C. Virtual memory
D. None of the above
Latest Answer : Who handles page faults?A. OS... ...
For which of following is it not possible to write an algorithm.
A. To find out 1026th prime number
B. To write program for NP-complete problem
C. To write program which generates true Random numbers.
What is the essential requirement for a real-time systems
A. pre-emption
B. virtual memory
C. paging etc