Operating System

11. In Unix operating system, when a process creates a new process using the fork() system call, which state is shared?
fork() call में parent और child के बीच क्या share होता है?
(UGC NET C.S. June-2016 (Paper-III))
A. Heap
B. Stack
C. Shared memory segments
D. Both Heap and Stack

Correct Answer: C

Explanation (EN): Only shared memory segments are shared; other parts are duplicated.

Explanation (HI): केवल shared memory segments साझा होते हैं, बाकी copy हो जाते हैं।

12. Which of the following information about the UNIX file system is not correct?
Unix file system के बारे में कौन-सा statement गलत है?
(UGC NET C.S. June-2016 (Paper-III))
A. Super block info correct
B. i-node info correct
C. Each i-node is 256 bytes long
D. Files stored in blocks

Correct Answer: C

Explanation (EN): i-node size is not necessarily 256 bytes (commonly 128 bytes), so statement is incorrect.

Explanation (HI): i-node का size 256 bytes नहीं होता, इसलिए यह statement गलत है।

13. Which of the following option with reference to UNIX operating system is not correct?
Unix OS के संदर्भ में कौन-सा statement गलत है?
(UGC NET C.S. June-2016 (Paper-III))
A. INT signal
B. TERM signal
C. QUIT signal
D. KILL is blockable

Correct Answer: D

Explanation (EN): KILL signal cannot be blocked or ignored.

Explanation (HI): KILL signal को block नहीं किया जा सकता।

14. _____ is a symbol used to represent special files in Linux OS.
Linux OS में special files को दर्शाने के लिए कौन-सा symbol उपयोग होता है?
(DSSSB TGT C.S. 07.08.2021 (Shift-I))
A. d
B. e
C. c
D. s

Correct Answer: C

Explanation (EN): 'c' represents character special files in Linux.

Explanation (HI): Linux में 'c' character special file को दर्शाता है।

15. What is the description of append keyword of Visual Basic .NET?
VB.NET में append keyword का क्या उपयोग है?
(DSSSB TGT C.S. 08.08.2021 (Shift-I))
A. Boolean operation
B. Used in declare statement
C. Used in file open function
D. Assembly attribute

Correct Answer: C

Explanation (EN): Append mode is used to add data at end of file without overwriting.

Explanation (HI): Append mode file के अंत में data जोड़ने के लिए उपयोग होता है।

16. What does '/etc' directory contain in Linux operating system?
Linux में /etc directory में क्या होता है?
(DSSSB TGT C.S. 07.08.2021 (Shift-II))
A. Home directories
B. System configuration files
C. Misc data
D. Shared programs

Correct Answer: B

Explanation (EN): /etc stores system configuration files.

Explanation (HI): /etc में system configuration files होती हैं।

17. Which of the following information is not part of user structure in Unix Kernel?
Unix kernel में user structure का भाग क्या नहीं है?
(UGC NET C.S. June-2015 (Paper-II))
A. File descriptor table
B. System call state
C. Scheduling parameters
D. Kernel stack

Correct Answer: C

Explanation (EN): Scheduling parameters are part of process table, not user structure.

Explanation (HI): Scheduling parameters process table में होते हैं, user structure में नहीं।

18. ––––––– maintains the list of free disk blocks in Unix file system
Unix file system में free disk blocks की list कौन maintain करता है?
(UGC NET C.S. June-2014 (Paper-III))
A. I-node
B. Boot block
C. Super block
D. File allocation table

Correct Answer: C

Explanation (EN): Super block maintains list of free blocks and file system metadata.

Explanation (HI): Super block free blocks की list maintain करता है।

19. A part Windows 2000 operating system that is not portable is
Windows 2000 का कौन-सा भाग portable नहीं है?
(UGC NET C.S. June-2014 (Paper-III))
A. Device Management
B. Virtual Memory Management
C. Processor Management
D. User Interface

Correct Answer: B

Explanation (EN): Virtual memory depends on hardware, so not portable.

Explanation (HI): Virtual memory hardware dependent होती है, इसलिए portable नहीं है।

20. The output generated by the LINUX command: seq 1 2 10 will be
Linux command seq 1 2 10 का output क्या होगा?
(UGC NET C.S. June-2014 (Paper-III))
A. 1 2 10
B. 1 2 3 ...10
C. 1 3 5 7 9
D. 1 5 10

Correct Answer: C

Explanation (EN): seq 1 2 10 generates sequence with step 2: 1,3,5,7,9.

Explanation (HI): seq command 1 से 10 तक step 2 में output देता है: 1,3,5,7,9।

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