Operating Systems Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Windows (3805)
Linux (2255)
Unix (1304)
Solaris (894)

RTOS (43)
Bulnex (4)
Operating Systems General Concepts (1242)
Data Structures (2039)

Operating Systems Interview Questions

Questions Answers Views Company eMail

What is the purpose of system programs?

1172

What is Throughput, Turnaround time, waiting time and Response time?

1131

Explain the purpose of the open() and close() operations.

2249

Define the difference between preemptive and nonpreemptive scheduling.

1148

What advantage is there in having different time-quantum sizes on different levels of a multilevel queuing system?

1397

What is Page-Stealer process?

1333

What is a device queue?

1191

Command Kill any user’s all processes.

1054

File which stores the DNS configuration at client side?

1308

What are deadlock prevention techniques?

1202

What command is used to remove the password assigned to a group?

1214

What is GRUB?

1124

Define Operating System Types.

1116

What is BSS(Block Started by Symbol)?

1194

At what mode the fault handler executes?

1215

Un-Answered Questions { Operating Systems }

Write a command that will allow a unix system to shut down in 15 minutes, after which it will perform a reboot.

1337

What is the use of safe mode in android?

1007

How do I uninstall remnants of uninstalled programs?

990

Does windows 10 support 32 bit applications?

843

What is the buddy system of memory allocation in operating system (os)?

1094

Explain the term cli?

1100

Why we use windows operating system?

993

What do you mean by linear probing?

1113

How do I manually update windows?

896

What is the difference between window and windows?

1039

When you create a new partition, you need to designate its size by defining the starting and ending?

914

What are the advantages of unix?

1096

What is a matrix?

1191

Explain critical section?

1118

What is a Kernel?

1168

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