vu cs604 Final Term - Quiz No.33
vu cs604 Operating Systems Quiz
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Question 1: There are 10 different processes running on a workstation. Idle processes are waiting for an input event in the input queue. Busy processes are scheduled with the RoundRobin timesharing method. Which out of the following quantum times is the best value for small response times, if the processes have a short runtime, e.g. less than 10ms?
tQ = 15ms
tQ = 40ms
tQ = 45ms
tQ = 50ms
Question 3: __________ is caused due to un-used in physical memory.
Internal fragmentation
External fragmentation
Paging
Paging
Question 4: The condition in which a set {P0, P1, ..., Pn} of waiting processes must exist such that P0 is waiting for a resource that is held by P1, P1 is waiting for a resource that is held by P2, and so on, Pn-1 is waiting for a resource held by Pn, and Pn is waiting for a resource held by P0. This condition is known as __________.
Mutual exclusion
Hold and wait
No preemption
Circular wait
Question 5: What do we name to an address that is generated by CPU?
Logical address
Physical address
Binary address
None of the above
Question 7: In __________ OS, the response time is very critical.
Multitasking
Batch
Online
Real-time
Question 8: In producer-Consumer problem synchronization is required. On which shared area this synchronization actually affect?
Counter
Buffer
Entry section
Exit section
Question 9: Which file system does DOS typically use?
FAT16
FAT32
NTFS
WNFS
Question 10: Typically monitor, a high level synchronization tool is characterized by __________ and __________.
Global variable,local variable
Signal, wait
Local data, programmer defined operators
Local variables, semaphores
