CS609 Final Term Subjective Paper 2011

Shared by Rashid Iqbal

Recovery of deleted contents of  file                  Steps

Steps to access NTFS volume using BIOS function

Association B/w DPB and BPB

Difference b/w logical and physical view of memory

Different type of computer viruses

Why should we not calculate FSIfo block information again and again in FAT?

Usage of DMA mode register

What are viruses?

How larger files can be managed using FAT

Calculate sector#

Difference b/w primary and extended partition

CPUID test

Shared by Ahmed Zia
Descriptive Questions 
2 Marks
1) Disadvantage of undocumented service of interrupts
2) Difference between programmed I/O and interrupt I/O
3) When delete file what happen to chain of cluster in FAT
4) Contiguous memory management
5) What is highest capacity of disk using IDE and extended Bios Function?
3 Marks
1) In which media storage head touches the surface of the disk and why?
2) How cross reference detects
3) Possible entries are there in FAT12 and FAT16
4) ISR (interrupt service routine) for EOI (end of interrupt) write the line of code for 
this in C
5) From where, in partition table’s data part we can check the drive is bootable or 
not.
5 Marks
1) Why we convert cluster number to sector number
2) How LSN be translated into LBA
3) How chain of cluster managed in FAT12

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