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36. A partitioned data set is most used for
storing program data
storing ISAM files
a program or source library
storing backup information
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37. Solution of name collision problem is
single level directory
two level directory
tree structure
all of these
38. An incremental backup
uses more tapes
should be done each month
saves only files that have recently changed
saves all files
39. The simplest directory structure is
tree structure directory
none of these
40. Disaster recovery
is needed by every installation
is never needed
varies in degree between installations
requires off-site computer for immediate use
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