Introduction

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Open its course - Operating Systems

Introduction

What Operating Systems...
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Topic Summary
What Operating Systems Do
Computer-System Organization

Topic Questions: 20
MCQs	T/F	FiB	SQ
19	0	1	0

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MCQs T/F FiB Short Qs

Open its course - Operating Systems

Multiple Choice Questions for Introduction

1 After a newly created process has been made ready for execution ,which of the following actions occurs:
1. It waits for user input
2. It creates a window for user interaction
3. It competes with other processes for the CPU
4. It voluntarily yields the CPU to other processes
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2 Swapping of two processes concept is usually used for swapping between:
1. CPU and Memory
2. CPU and Disk
3. Ready state and Running state
4. Memory and Disk
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3 What does (Base register + Limit register) tells?
1. It tells the smallest legal physical memory address
2. It tells the end of process memory address
3. It tells the maximum addressable area
4. None
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4 In process state transition state diagram, the transition from Running to waiting state indicates that running process:
1. has been interrupted externally
2. is waiting for an event
3. has been preempted by another process
4. is in state of dispatching
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5 The mechanism that brings a page into memory only when it is needed is called:
1. Segmentation
2. Fragmentation
3. Demand Paging
4. Page Replacement
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6 Feed Back Scheduling has the following characteristics:
1. In it the scheduling is done on preemptive basis
2. Processes are demoted to the next lower priority queue after each execution
3. Both Options A & B
4. 'None
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7 CPU Scheduler / short term scheduler, schedules job:
1. From Processor to Blocked state
2. From Disk to Ready state
3. From Ready state to processo
4. 'From Processor to Suspended state
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8 Critical Resources are:
1. Shareable resources
2. Non-Shareable resources
3. Both a & b
4. None
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9 In CPU bound jobs
1. Most of the CPU time is consumed in context switching
2. Most of the CPU time is consumed in processing Jobs
3. Most of the time CPU idle
4. Most of the time CPU is in Wait State
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10 Which is not the requirement of a solution to the critical-section problem?
1. Mutual Exclusion
2. Progress
3. Busy Waiting
4. Bounded Waiting
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11 Which of the following process state transitions is invalid?
1. ready -> running
2. ready -> blocked
3. blocked -> ready
4. running -> exit'
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12 Which scheduler controls the degree of multi programming?
1. CPU scheduler
2. Job scheduler
3. Process dispatcher
4. Context switcher
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13 Threads belonging to the same process share the:
1. Stack
2. Data section
3. Register set
4. Thread ID
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14 Which is not the part of File Management?
1. The creation and deletion of files
2. The backup of files storage media
3. Error Detection
4. The creation and deletion of directory
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15 Segmentation means:
1. Physical division of virtual memory
2. Both physical and logical divisions
3. Logical division of virtual memory
4. None
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16 Process can share/exchange data by using the concepts:
1. shared memory
2. message passing
3. both a & b
4. None
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17 A process switches due to which of the following reason(s)?
1. I/O request
2. System halt
3. Time quantum expiry
4. Both a & c
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18 Which of the followings is not a class of Interrupts?
1. Program Interrupts
2. Timer Interrupts
3. Functional Interrupts
4. I/O Interrupts
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19 Privileged instructions are executed in:
1. User mode
2. Kernel mode
3. Dual mode
4. Single mode
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Multiple Choice Questions for Introduction

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