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16. Which types of file organization are supported by magnetic tape?
random files
contiguous sequential file
indexed sequential file
all of these
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17. Shared sub-directories and files are example of
a cyclic graph directory
tree structured direction
one level directory
none of these
18. Consider six files: F1, F2, F3, F4, F5, F6 with corresponding sizes 100, 200, 70, 40, 250 and 50 respectively, the files are to be stored on a sequential device in such a way that as to optimize access time. In what order should the files be stored?
F6, F5, F4, F3, F2, F1
F1 F2, F3, F4, F5, F6
F5, F2, F1, F3, F6 , F4
F4, F6, F3, F1 F2, F5
19. Which type of design problem in file system?
How the file system should look to the user
Algorithm and data structure must be created to map the logical file system onto the secondary storage device
Both (a) and (b)
None of these
20. Consider six files F1, F2, F3, F4, F5 and F6 of corresponding sizes 100, 200, 70, 40, 250 and 50 respectively. If the files are stored in such a manner to optimize access time, what will be the approximate average access time of a record from one of the six files on the sequential device?
131
198
286
433
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