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

Windows (3805)
Linux (2255)
Unix (1343)
Solaris (894)

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

Operating Systems Interview Questions

Questions Answers Views Company eMail

What do you mean by memory leak?

1096

What is a cache memory?

TCS,

921

Explain what is meant by heap?

BPL,

1049

Explain High Severity and Low Priority with example?

Wipro,

987

What are the different memories you know about? Which of them takes the shortest access time?

Wipro,

1086

Difference between short term, long term and medium term scheduler.

Tech Mahindra,

1123

Which event determines that all the controls are completely loaded into memory?

MindCracker,

1012

what is the memory required when a screen has 1024*1280 pixels and each pixel can have around 16 million colors?

CGI,

943

Which technology does Pentium use - RISC or CISC?

Tech Mahindra,

967

Where are the global variables stored?

1055

What is the difference between exclusive lock and shared lock?

1100

Can you tell me the difference between semaphore and mutex.

1106

Explain what is a semaphore?

BPL,

1056

What is significance of semaphores? What are the different types of semaphores?

1051

What is a hard real time OS?

Motorola,

1127

Un-Answered Questions { Operating Systems }

What are special characters in unix?

815

Differentiate between priorityqueue and treeset.

1178

How to Write a UDP Datagram Server?

1259

Is windows defender automatically on?

841

What are bash scripts used for?

1033

What is sdram?

961

What is data and data types?

863

What are the command prompt commands?

1002

Can you explain Does "AMD Turion 64 X2 Processor TL50, 1.6 GHz and above" supports Solaris 10?

690

Which shell do you assign to a pop3 mail-only account?

800

please post step by step installation of packages from the EIS cd..

2195

What is the difference between arraylist and hashmap?

896

Explain condition variable.

948

Is 32 gigs of ram overkill?

919

In what order the elements of a hashset are retrieved?

901

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