CS401 Quiz

Question # 1
Operating system Organize data in the form ofSelect correct option:
    Folder
   Batch file
    File
    None of the above

Question # 2
The maximum length of DOS command line parameters isSelect correct option:
    64 bits
    127 bits
    256 bits
    512 bits

Question # 3
The root directory of floppy contains _____ fixed entriesSelect correct option:
    64
    256
    128
    512

Question # 4
A FAT32 file system directory entry in DOS consist of how many bytes ?Select correct option:
    16
    24
    32
    64

Question # 5
"INT13 --BIOS disk services" generally uses which register to return the 'error flag' ?Select correct option:
    CF
    DL
    AH
    AL

Question # 6
Hard disk MBR( Master Boot Record ) is of sizeSelect correct option:
    446 bytes
    350 bytes
    512 bytes
    256 bytes

Question # 7
"INT13 --BIOS disk services" generally uses which register to return the 'error code' ?Select correct option:
    CF
    DL
    AH
    AL

Question # 8
In case of COM file, first command line parameter is stored at ___ offset of 'program segment prefix'Select correct option:
    0x80
    0x82
    0x84
    0x86


Question # 9
On executing INT 0x21--service 0x3D, if file can't be opened thenSelect correct option:
    CF will contain 1
    CF will contain 0
    ZF will contain 1
    ZF will contain 0

Question # 10
On executing INT 0x21 service 0x3D, if file is successfully opened thenSelect correct option:
    CF will contain 1
    CF will contain 0
    ZF will contain 1
    ZF will contain 0