CS609 QUIZ June 22, 2022June 15, 2022 by superstarwebtech Practice cs609 final term quiz 1. Extended BIOS function make use of ___ address None CHS LBA LSN 2. BIOS services understand ___ Cluster # LBA LSN None 3. The partition table uses the extended ___ service 15h 14h 13h 16h 4. What will be the value of the word located at 1Fh in DPB when number of free clusters on drive is not known? None FFFFH 1111H 0000H 5. ___ is an absolute address relative to the start of physical drive None LSN LBA CHS 6. For supporting long file names. ___ fragments can be supported 20 12 32 26 7. In memory map of first 1 MB of RAM, the higher ___ is called system memory 64 kb 640 kb None 384 kb 8. What will be the value of DL register when we are accessing C drive using undocumented service 21H/32H? 1 3 2 0 9. In partition table, if LBA = 0 then it means Logical Drive MBR Extended Partition None 10. The data structure that is maintained by the DOS in the boot block of each drive is known as: DPB RDB FCB BPB 11. 80386 can have ___ control registers 4 5 2 3 12. LBA address can be used in place of CHS address False True 13. There is/are ___ DMA controller’s masking register(s). 2 3 4 1 14. When we mark a file as deleted by placing 0xE5 then the chain of clusters in FAT is also replaced by ___ E5 N 0 1 15. In NTFS first ___ entries are reserved 6 32 4 16 16. The last partition table within the chain contains ___ entry/entries about the logical drive Three Double Single Four 17. The size of FSInfo block is: 256 byte 128 byte 512 byte 64 byte 18. ___ is the first logical sector of NTFS partition Boot sector None DPB MFT 19. Each addressable unit has a unique combination of sec#, head#, track# as its ___ address. Physical None Logical Both 20. Blocks can be termed as ___ Cylinder per sector Sectors per track None Track per sector 21. The entry point of execution in EXE File can be Anywhere in the Program Start of the last execution Can be in the middle of the program Start of the first execution 22. In FAT12, the maximum range of clusters is ___ 3 ~ FFEFH 1 ~ FFEFH 2 ~ FFEFH 0 ~ FFEFH 23. An extended partition can have one or more ___ partitions None Primary Physical Logical 24. Cluster number can also be referred as block number False True 25. The value ___ of partition table signature indicate that the code part contains valid executable code. AA55 AA44 AA33 AA22 26. In memory map of first 1MB of RAM, the first ___ is called conventional RAM 64 kb 640 kb None 384 kb 27. A single DMA can transfer ___ bit operand to and from memory in one bus cycle 4 12 8 16 28. File can be ___ views as collection of clusters or blocks None Both Physically & Logically Physically Logically 29. Drive parameter block is derived from ___ FCB BPB CPB FAT 30. Service 21H/52H service returns the address of DOS internal data structures in ES:BX ___ behind the address returned lies the far address of the first MCB in memory 6-bytes 4-bytes 8-bytes 2-bytes Loading … Question 1 of 30
