System Analysis and Design
Which of the following statements is not true

All of these
None of these
a checksum digit is used for detecting Errors in data transmission
pointers are useful in traversing a linked list
at example of a hierarchical data structure is tree

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System Analysis and Design
The advantage of Purchase Option is (are)

None of these
All of these
No financing is requird. The risk of system obsolescence is shifted to the lessor
the flexibility of modifying the system at will
Insurances, maintenance, and other expenses are included in the rental charge

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