The allocation map
A. | is used to store program data |
B. | specifies which blocks are used by which file |
C. | is updated by applications programs |
D. | allow programs to erase files |
Option: B Explanation : Click on Discuss to view users comments. |
A partitioned data set is most used for
A. | storing program data |
B. | storing ISAM files |
C. | a program or source library |
D. | storing backup information |
Option: C Explanation : Click on Discuss to view users comments. Gokulnath said: (3:17pm on Sunday 30th April 2017)
Answer: CA storage device can be used in its entirety for a file system. It can also besubdivided for finer-grained control. For example, a disk can be partitionedinto quarters, and each quarter can hold a separate file system.(In general file systems include both program and source library)
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Solution of name collision problem is
A. | single level directory |
B. | two level directory |
C. | tree structure |
D. | all of these |
Option: B Explanation : Click on Discuss to view users comments. Gokulnath said: (3:19pm on Sunday 30th April 2017)
Answer: BIn the two-level directory structure, each user has his own user filedirectory (UFD). When a user refers to a particular file, only his own UFD is searched. Thus,different users may have files with the same name, as long as all the file nameswithin each UFD are unique.
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