289. Which of the following is system software?
Operating system
Compiler
Utilities
All of the above
✅ The correct answer is option D.
292. When a peripheral device needs immediate attention from the operating system, it generates a(n)
Interrupt
Spool
Stack
Page file
✅ The correct answer is option A.
296. Which of the following is not a mode in starting Windows?
Command Prompt
Safe Mode
Normal Mode
Turbo Mode
✅ The correct answer is option D.
300. Semaphores
synchronize critical resources to prevent deadlock
synchronize critical resources to prevent contention
are used to do I/O
are used for memory management
✅ The correct answer is option A.
302. Four necessary conditions for deadlock to exist are: mutual exclusion, no-preemption, circular wait and
hold and wait
deadlock avoidance
race around condition
buffer overflow
✅ The correct answer is option A.
304. Which of the following Operating systems is better for implementing a Client-Server network
MS DOS
Windows 95
Windows 98
Windows 2000
✅ The correct answer is option D.
306. Relocation bits used by relocating loader are specified (generated) by
Relocating loader itself
Linker
Assembler or translator
Macro processor
✅ The correct answer is option B.
309. Which of the following is a type of systems software used on microcomputers?
MS-DOS
PC-DOS
Unix
All of the above
✅ The correct answer is option D.