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

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Operating Systems Interview Questions

Questions Answers Views Company eMail

Assume that passwords are selected from four-character combinations of 26 alphabetic characters. Assume that an adversary is able to attempt passwords at a rate of one per second. a) Assuming no feedback to the adversary until each attempt has been completed, what is the expected time to discover the correct password?

FCI,

4 19681

Assuming feedback to the adversary flugging an error as each incorrect character is entered, what is the expected time to discover the correct password?

1 3411

Assuming one link of the Trojan horse copy-and-observe-later chain is broken. There are two other possible angles of attack by Alice: Alice logging on and attempting to read the string directly, and alice assigning a security level of sensitive to the back-pocket file. Does the reference monitor prevent these attacks?

1 2891

The flushing policy is described in the subsection on process migration strategies: a) From the perspective of the source, which other strategy does flushing resembles? b) From the perspective of the target, which other strategy does flushing resemble?

1 2361

Directories can be implemented either as "special files" that can only be accessed in limited ways, or as ordinary data files. What are the advantages and disadvantages of each approach?

1 4579

Some operating system have a tree structured file system but limits the depth of the tree to some small number of levels. what effect does this limit have on users? How does this simplify file system (if it does)?

1 9136

In the token-passing mutual exclusion algorithm, is the timestamping used to reset clocks and correct drifts, as in the distributed queue algorithms? if not, what is the function of the timestamping?

HCL,

1 2762

How to use disk quotas in solaris (command mode) ? what is the procedure for checking disk space of the particular user in command mode?

Samsung,

7 19860

what is the back up software we r using in solaris 8,9,10

2 5999

what is windows installer

IBM, Metropolitan Health Group, Microsoft,

2 6941

what is windows installer?

2 6638

1)application programs interact with operating system through system call.is there any method of interaction between the two? 2) Inconveniences faced by user interacting with a computer systemwithout a operating system? 3) what are the requirements for virtual memory architecture

KCPL,

2 4802

how does virtual memory work?

1 6309

What is the reason for getting the dialouge box( send this error to microsoft giving options as send to microsoft and dont send ) when we abort from the any work when it was struck.

CTS, HCL,

1 5201

what are the features of Linux?

2 7767

Un-Answered Questions { Operating Systems }

For the following COBOL code, draw the Binary tree? 01 STUDENT_REC. 02 NAME. 03 FIRST_NAME PIC X(10). 03 LAST_NAME PIC X(10). 02 YEAR_OF_STUDY. 03 FIRST_SEM PIC XX. 03 SECOND_SEM PIC XX.

1385

What is the latest windows operating system?

1051

What items of information about a task might be useful in real time scheduling?

4553

can any one send me one project on linux ...?

2850

What does it cost to upgrade to windows 10?

923

What is the latest version of microsoft edge for windows 10?

901

what's the latest ram lunch?

2725

What is the current version of windows 10?

948

What is the latest version of linux?

1019

What is the command for cut?

1031

How does registry work wedding?

885

What is the next windows after 10?

949

What is the next version of windows after 10?

979

1.Have you used vxboot ? 2.Minimum requirement for mirror volume to created ?

2240

How can you edit a large file without opening it in unix?

974

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