Related Questions

On-line transaction processing is used when ______________. I) it is required to answer random queries. II) it is required to ensure correct processing. III) all files are available on-line. IV) all files are stored using hard disk.
A i, ii
B i, iii
C ii, iii, iv
D i, jj ,iii
Hard disk এর পিছনের জাম্পার সেটিং ঠিক না থাকলে যে সমস্যা হয় -i. সফটওয়্যার install করা যায় নাii. Boot disk failureiii. Hard disk not found দেখায়নিচের কোনটি সঠিক?
A i ও ii
B i ও iii
C ii ও iii
D i, ii ও iii
A certain hard disk has a data transfer rate of 20 MB/sec. How much time is required to transfer 5 megabyte data from this disk to memory?
A 20 sec.
B 1 sec.
C 0.5 sec.
D 0.25 sec.
DOS uses letters of the alphabet to designate disk drives. How many disk drives can DOS address (recognize)?
A 4
B 26
C 1
D 16
E None of the above
Which option will be used with disk free command to include the total amount of disk space in the file system?
A #NAME?
B #NAME?
C -4
D #NAME?
E None of the above
A _____ is simply an arrangement where multiple disk drives appear as a single disk drive to the user.
A disk
B disk array
C bunch of disks
D disk pack
E spanned drive
Before a disk drive can access any sector record, a computer program has to provide the record's disk address. What information does this address specify?
A Track number
B Sector number
C Surface number
D All of the above
E None of the above
What process prepares the magnetic surface of a disk by creating concentric circles, called tracks, around the disk? (Each track is further divided into pic-shaped sections called sectors.)
A Tracking
B Formatting
C Copying
D Sectioning
E None of the above
Most disk drives have a single read/ write head for each disk surface. What is the advantage of suing multiple heads on each movable access arm?
A Reduced seek time
B Less latency time
C Reduced search time
D Less disk speed
E None of the above
When MS-DOS formats a disk, it automatically creates the main directory on your disk, which is called the _____ directory.
A main
B root
C area
D border
E None of the above

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