Placement papers on Operating System - Set 2
1. In ______ OS, the response time is very critical.
Multitasking
Batch
Online
Real-time
View Answer / Hide Answer2. An optimal scheduling algorithm in terms of minimizing the average waiting time of a given set of processes is ________.
FCFS scheduling algorithm
Round robin scheduling algorithm
Shorest job - first scheduling algorithm
None of the above
View Answer / Hide AnswerANSWER: Shorest job - first scheduling algorithm
3. Which technique was introduced because a single job could not keep both the CPU and the I/O devices busy?
Time-sharing
SPOOLing
Preemptive scheduling
Multiprogramming
View Answer / Hide Answer4. Inter process communication can be done through __________.
Mails
Messages
System calls
Traps
View Answer / Hide Answer5. CPU performance is measured through ________.
Throughput
MHz
Flaps
None of the above
View Answer / Hide Answer6. PCB =
Program Control Block
Process Control Block
Process Communication Block
None of the above
View Answer / Hide AnswerANSWER: Process Control Block
7. The primary job of the operating system of a computer is to ________.
Command Resources
Manage Resources
Provide Utilities
Be user friendly
View Answer / Hide Answer8. With the round robin CPU scheduling in a time-shared system ________.
Using very large time slice degenerates in to first come first served algorithm
Using extremely small time slices improve performance
Using extremely small time slices degenerate in to last in first out algorithm
Using medium sized time slices leads to shortest request time first algorithm
View Answer / Hide AnswerANSWER: Using very large time slice degenerates in to first come first served algorithm
9. Which of the following is a criterion to evaluate a scheduling algorithm?
CPU Utilization: Keep CPU utilization as high as possible.
Throughput: number of processes completed per unit time.
Waiting Time: Amount of time spent ready to run but not running.
All of the above
View Answer / Hide Answer10. Which of the following is contained in Process Control Block (PCB)?
Process Number
List of Open files
Memory Limits
All of the Above
View Answer / Hide Answer
