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Question

In authorization graph if DBA provides authorization to u1 which in turn gives to u2 which of the following is correct ?

a.

If DBA revokes authorization from u1 then u2 authorization is also revoked

b.

If u1 revokes authorization from u2 then u2 authorization is revoked

c.

If DBA & u1 revokes authorization from u1 then u2 authorization is also revoked

d.

If u2 revokes authorization then u1 authorization is revoked

Posted under DBMS

Answer: (c).If DBA & u1 revokes authorization from u1 then u2 authorization is also revoked

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Q. In authorization graph if DBA provides authorization to u1 which in turn gives to u2 which of the following is correct ?

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