Q. The aging algorithm with a=0.5 is used to predict run times. The previous four runs from oldest to most recent are 40, 20, 20 and 15 msec. The prediction for the next time will be:

View solution

Q. Moving process from main memory to disk is called:

View solution

Q. Part of a program where the shared memory is accessed and which should be executed indivisibly, is called:

View solution

Q. Windows is a .................. operating system.

View solution

Q. Which page replacement policy suffers from Belady’s anomaly?

View solution

Q. Cache memory is:

View solution

Q. ....................is one of pre-emptive scheduling algorithm.

View solution

Q. A software to create a Job Queue is called...................

View solution

Q. In processor management, round robin method essentially uses the preemptive version of ...................

View solution

Q. A page fault ..................

View solution

Q. .................. synchronize critical resources to prevent deadlock.

View solution

Q. The memory allocation scheme subjected to “external” fragmentation is:

View solution

Q. Producer consumer problem can be solved using:

View solution

Q. Banker’s algorithm is used for ................... purpose.

View solution

Q. Bankers algorithm is for

View solution

Q. Which is the correct definition of a valid process transition in an operating system ?

View solution

Q. Semaphores are used to:

View solution

Q. In which of the following storage replacement strategies, is a program placed in the largest available hole in the memory?

View solution

Q. Remote computing system involves the use of timesharing systems and:

View solution

Q. Match the following

(a) Disk scheduling                 (1) Round robin
(b) Batch processing               (2) Scan
(c) Time sharing                       (3) LIFO
(d) Interrupt processing          (4) FIFO

View solution