Operating System

324. The command cat > x in unix
Unix में command cat > x का क्या अर्थ है?
(UKPSC PGT C.S. Asstt. Prof. 2017)
A. Is invalid
B. Creates a file x and displays an error message
C. Creates a file x and waits for the user to give input from the keyboard
D. None of the above

Correct Answer: C

Explanation (EN): In Unix, 'cat > x' creates a file named x and waits for user input from the keyboard, which is written into the file until EOF is given.

Explanation (HI): Unix में 'cat > x' command file x बनाता है और keyboard से input लेकर उसे file में store करता है, जब तक EOF नहीं दिया जाता।

325. Choose the incorrect statement.
निम्न में से गलत कथन चुनिए।
(UKPSC PGT C.S. Asstt. Prof. 2017)
A. Shell scripts can accept arguments
B. Shell scripts are interpreted
C. Shell is a programming language
D. Shell scripts are compiled

Correct Answer: D

Explanation (EN): Shell scripts are interpreted at runtime and not compiled like languages such as C or Java.

Explanation (HI): Shell scripts compile नहीं होते, बल्कि runtime पर interpret होते हैं।

326. Which of the following is not a WINDOWS version ?
निम्न में से कौन-सा Windows का version नहीं है?
(HTET PGT C.S. 2018)
A. WINDOWS-96
B. WINDOWS-2000
C. WINDOWS-XP
D. WINDOWS-98

Correct Answer: A

Explanation (EN): Windows-96 was never released by Microsoft; it is not a valid Windows version.

Explanation (HI): Windows-96 कभी release नहीं हुआ, इसलिए यह valid version नहीं है।

327. In windows which of the following, helps protect users from malware and other potentially unwanted software ?
Windows में निम्न में से कौन malware और unwanted software से सुरक्षा देता है?
(HTET PGT C.S. 2019)
A. Windows Mobility Center
B. Windows Defender
C. Indexing Options
D. Windows Updates

Correct Answer: B

Explanation (EN): Windows Defender is built-in antivirus and anti-malware protection in Windows.

Explanation (HI): Windows Defender Windows का built-in antivirus है जो malware से सुरक्षा देता है।

328. In windows, we go to ______ option in Control panel to uninstall a program from our computer.
Windows में program uninstall करने के लिए Control Panel में किस option पर जाते हैं?
(HTET PGT C.S. 2019)
A. Default Programs
B. Action Center
C. Device Manager
D. Programs and Features

Correct Answer: D

Explanation (EN): Programs and Features option allows users to uninstall, repair or change installed programs.

Explanation (HI): Programs and Features option से installed programs को uninstall किया जाता है।

329. Which of the following command interface is normally used for windows operating system ?
Windows OS में सामान्यतः कौन-सा interface उपयोग किया जाता है?
(HTET PGT C.S. 2020)
A. Menu driven interface
B. Command line interface
C. Graphical user interface
D. Icon interface

Correct Answer: C

Explanation (EN): Windows primarily uses GUI (Graphical User Interface) for user interaction.

Explanation (HI): Windows मुख्य रूप से GUI (Graphical User Interface) का उपयोग करता है।

330. Office Automation System deals with which of the following? I. Word processing II. Annual budgeting
Office Automation System निम्न में से किससे संबंधित है? I. Word processing II. Annual budgeting
(DSSSB TGT C.S. 07.08.2021 (Shift-II))
A. Only I
B. Only II
C. Both I and II
D. Neither I nor II

Correct Answer: A

Explanation (EN): Office automation mainly deals with tasks like word processing, not financial operations like budgeting.

Explanation (HI): Office automation मुख्यतः word processing जैसे कार्यों से संबंधित होता है।

331. What is the function of the following UNIX command? wc -l < a > b &
UNIX command wc -l < a > b & का क्या कार्य है?
(UGC NET C.S. June-2016 (Paper-III))
A. Runs in foreground and counts lines
B. Runs in background and counts lines
C. Counts errors
D. Copies lines

Correct Answer: B

Explanation (EN): wc -l counts lines, < a takes input, > b outputs to file b, & runs it in background.

Explanation (HI): wc -l lines count करता है, < a input देता है, > b output file b में देता है और & इसे background में चलाता है।

332. Which of the following statement is not correct with reference to cron daemon in UNIX O.S.?
cron daemon के संदर्भ में कौन-सा कथन गलत है?
(UGC NET C.S. June-2016 (Paper-III))
A. Runs scheduled commands
B. Starts at boot
C. Reads configuration files
D. Crontab for individual users are not stored

Correct Answer: D

Explanation (EN): Crontab files for individual users are stored in the system.

Explanation (HI): Individual users के crontab files system में store होते हैं, इसलिए यह statement गलत है।

333. In Unix, files can be protected by assigning each one a 9-bit mode called right bits. Now, consider the following two statements.
Unix में file permissions के बारे में कौन-सा सही है?
(UGC NET C.S. June-2016 (Paper-III))
A. Only I is correct
B. Only II is correct
C. Both I and II are correct
D. Both I and II are incorrect

Correct Answer: C

Explanation (EN): Both permission interpretations for 641 and 100 octal modes are correct.

Explanation (HI): 641 और 100 दोनों permission representations सही हैं।