273. Backups should be done
daily for most installations
weekly for most installations
as several image copies, followed by an incremental
as several incrementals, followed by an image copy
✅ The correct answer is option D.
277. Which key deletes text before, or to the left, of the insertion point?
PageUp
Delete
PageDown
BackSpace
✅ The correct answer is option D.
279. What is contained in the page table?
Base address of each frame and corresponding page number
Memory address and corresponding page number
File name and corresponding page number
None of Above
✅ The correct answer is option A.
281. What is the name of the operating system that reads and reacts in terms of actual time.
Batch system
Quick response system
Real time system
Time sharing system
✅ The correct answer is option C.
244. Which of the following system program forgoes the production of object code to generate absolute machine code and load it into the physical main storage location from which it will be executed immediately upon completion of the assembly?
two pass assembler
load-and-go assembler
macroprocessor
compiler
✅ The correct answer is option B.
246. Which policy replace a page if it is not in the favoured subset of a process’s pages?
FIFO
LRU
LFU
Working set
✅ The correct answer is option D.
250. Copying a process from memory to disk to allow space for other processes is Called
Swapping
Deadlock
Demand Paging
Page Fault
✅ The correct answer is option A.
253. Which of the following resources must be protected by the operating system?
I/O
Memory
CPU
All of the above
✅ The correct answer is option D.