Hi students, Welcome to Amans Maths Blogs (AMBIPi). Are you preparing for SSC Scientific Assistant and looking for SSC Scientific Assistant IMD Computer Science Questions 121 to 140 with Answer Keys? In this article, you will get previous year questions of SSC Scientific Assistant IMD (Indian Meteorological Department), which helps you in the preparation of government job of SSC IMD Scientific assistant.
SSC Scientific Assistant IMD Previous Year Questions
SSC Scientific Assistant Question No: 121
Am operating system contains 3 user processes each requiring, 2 units of resource R. The minimum number of units of R such that no deadlock will ever occur is
Option A : 2
Option B : 4
Option C : 7
Option D : 5
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Option B : 4
SSC Scientific Assistant Computer Science Question No: 122
Mutual exclusive problem occurs ______.
Option A : between two disjoint processes that do not interact
Option B : among processes that share resources
Option C : among processes that do not use the same resource
Option D : none of these
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Option C : among processes that do not use the same resource
SSC Scientific Assistant Previous Year Question No: 123
Memory protection is of no use in a ______.
Option A : single user system
Option B : non-multi programming system
Option C : non- multitasking system
Option D : none of these
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Option D : none of these
SSC Scientific Assistant IMD Question No: 124
Memory protection is of no use in a
Option A : single user system
Option B : non- multi programming system
Option C : non-multitasking system
Option D : none of these
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Option D : none of these
SSC Scientific Assistant Question Paper No: 125
Disk scheduling involves deciding
Option A : which disk should be accessed next
Option B : the order in which disk access request must be serviced
Option C : the physical location where files should be accessed in a disk
Option D : none of these
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Option B : the order in which the disk access request must be serviced
SSC Scientific Assistant Previous Year Paper Question No: 126
For showing which of the following is dirty bit used?
Option A : Page with corrupted data
Option B : Wrong page in a memory
Option C : Page that is being modified after loaded into cache memory
Option D : Page that is less frequently accessed
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Option C : Page that is being modified after loaded into cache memory
SSC Scientific Assistant Previous Year Paper Computer Science Question No: 127
Which of the following is the service not supported by operating system?
Option A : Protection
Option B : Accounting
Option C : Compilation
Option D : I/O Accounting
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Option C : Compilation
Scientific Assistant Previous Year Question Paper No: 128
For which of the following is the first-fit, best-fit, and the worst-fit algorithms used?
Option A : contiguous allocation of memory
Option B : linked allocation of memory
Option C : indexed allocation of memory
Option D : all options are correct
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Option A : contiguous allocation of memory
IMD Scientific Assistant Question Paper No: 129
Which of the following is/are a single user operating system (s)?
Option A : MS-DOS
Option B : UNIX
Option C : Both MS-DOS and UNIX
Option D : None of these
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Option A : MS-DOD
Previous Year Question SSC Scientific Assistant: 130
In a multiprogramming environment
Option A : the processor executes more than one process a time
Option B : the programs are developed by more than one person
Option C : more than one process resides in the memory
Option D : a single user can execute many programs at a same time
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Option C : more than one process resides in the memory
SSC IMD Scientific Assistant Question No: 131
The size of virtual memory depends on the size of the
Option A : data bus
Option B : main memory
Option C : address bus
Option D : none of these
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Option C : address bus
SSC IMD Scientific Assistant Computer Science Question No: 132
Which of the following statements is true?
Option A : Overlays are used to increase the size of memory
Option B : Overlays are used to increase the logical address space
Option C : When Overlays are used, the size of process is not limited to the size of memory
Option D : Overlays are used whenever the physical address space is smaller than logical address space
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Option C : When Overlays are used, the size of process is not limited to the size of memory
SSC Scientific Assistant IMD Previous Year Question No: 133
Consider a set of processes whose arrival time, CPU time needed and the priority are given below. If the CPU scheduling policy is FCFS, what will be the average waiting time?
Option A : 12.8 ms
Option B : 8 ms
Option C : 16 ms
Option D : none of these
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Option A : 12,8 ms
SSC Scientific Assistant IMD Question No: 134
In partitioned memory allocation scheme, the
Option A : best-fit algorithms is always better than first-fit algorithm.
Option B : first-fit algorithms is always better than best-fit algorithms.
Option C : superiority of the first-fit and the best-fit algorithms depends on the sequence of memory requests
Option D : none of these
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Option C : superiority of the first-fit and the best-fit algorithms depends on the sequence of memory requests
SSC IMD Scientific Assistant Question Paper No: 135
Cascading termination refers to the termination of all child processes before the parent terminates
Option A : normally
Option B : abnormally
Option C : normally or abnormally
Option D : none of these
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Option A : normally
SSC IMD Scientific Assistant Previous Year Paper Question No: 136
Which of the following is the most suitable scheduling scheme in a real-time operating system?
Option A : round-robin
Option B : first-come- first-server
Option C : preemptive scheduling
Option D : random scheduling
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Option C : preemptive scheduling
SSC IMD Scientific Assistant Previous Year Paper Computer Science Question No: 137
If there are 32 segments, each of the size is 1 kbytes, than the logical address should have
Option A : 13 bits
Option B : 14 bits
Option C : 15 bits
Option D : 16 bits
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Option C : 15 bits
IMD Scientific Assistant Previous Year Question Paper No: 138
When a sub-routine is called
Option A : It defines a new locality
Option B : It is in same locality from where it was called
Option C : It does not define a new locality
Option D : None of these
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Option A : It defines a new locality
IMD Scientific Assistant Question Paper No: 139
Consider the following page reference string:
1 2 3 4 2 1 5 6 2 1 2 3 7 6 3 2 1 2 3 6 For LRU page replacement algorithms with 4 frames, the number of page faults is:
Option A : 14
Option B : 5
Option C : 10
Option D : 11
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Option C : 10
Previous Year Question SSC IMD Scientific Assistant: 140
Which of the following statements is true?
Option A : Thrashing increases the CPU utilization
Option B : Thrashing decreases the CPU utilization
Option C : Thrashing keeps the CPU utilization constant
Option D : None of these
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Option B : Thrashing decreases the CPU utilization
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