System Analysis and Design
Advantages of Relational Database Management systems are

All of these
Security controls can be more easily implemented.
Data independence since it allows the database to grow by adding new attributes and relations.
None of these
Flexibility, of relating different logical files

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System Analysis and Design
A Turnaround document

All of these
is circulated among all the heads of departments of an organization.
is circulated among all the staff of an organization.
None of these
is output at one point which later comes back as an input

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