BARC 2020: Operating System Nuclear Quiz 1 (App update required to attempt this test)

Which of the following statement is /are true?

Statement 1 : External fragmentation is NOT possible in paging.

Statement 2 : Pages of any program are fixed-sized and can be located anywhere in the memory.

Consider a scheduling algorithm First Come First Serve (FCFS) used for scheduling purpose. There are 4 processes for which arrival time and burst time is given as

Average Turn Around time (TAT) and Waiting Time (WT) will be?

Convey effect is not observed in which of the following?

1.FCFS
2.SJF
3.SRTF

TEST SET LOCK (TSL) guarantees?

Consider three processes p1, p2 and p3 with their current allocation unit of resource and maximum requirement unit of resources in the table below

Available resource are (1, 3, 2). Safe sequence will be

Consider a system which has the Logical address is 27 bits and physical address is 21 bits and page size is 4KW and the memory is word addressable then calculate the number of pages and number of frames respectively.

What is the advantage of spooling?

Internal fragmentation is possible in which of allocation method?

Maximum throughput will be achieved at a particular time in

Suppose counting semaphore s having value If 19P, 12V and 3P operation perform respectively on s. then after performing these operation value of s will be ____. Assuming the initial value of s be 15.