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

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

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System Analysis and Design
Which of the following statements, is (are) not true for the lease option

Lease may be written to show higher payments is early years to reflect the decline in value of the system
All of the listed here
Insurance, maintenance and other expenses are included in the rental charge
Lease charges are lower than rental charges for the same period and are also tax deductable.

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System Analysis and Design
Sequential organization

Stores records sequentially but uses an index to locate records
means storing records in contiguous blocks according to a key.
has records placed randomly throughout the file
None of these
uses an index for each key type

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