B. To organize information using shapes.
Answer:
Churning
Explanation:
Churning is termed as an act of a broker conducting immoderate trading in the account of client solely to generate commissions. It is an illegal and deceptive practice. It violates security laws. The purchase and subsequent sale of a securities that are little or insignificant to meet the investment goals of client can be the evidence of churning. Consequently it causes considerable losses in client's account or can produce a tax liability.
Churning occurs due to over trading by a broker to generate commissions by buying and selling stocks excessively on the behalf of investor. This often happens when broker has permissive authority over client's account.
Answer:
Giving that: The following is a sequence of undo-log records written by 2 transactions T and U:
< START T >;
< T,A,10 >;
< START U >;
< U, B, 20 >;
< T, C, 30 >;
< U, D, 40 >;
< Commit U >;
< T, E, 50 >;
< Commit T >;
1. < START U >
Recovery action in this case will be undo(-1) and undo(0). All restored to its original Value
log records < T, A, 10 >, < T, abort >; as written out
2. < T, E, 50 >
Recovery action in this case will be undo(8) and redo(0). A and C is restored to its original value, B and D are set to 20 and 40
log records <T, C, 30 >, < T, A, 10 >, < T, abort > are written out
3. < Commit T >
Recovery action in this case will be redo(7) and redo(4). A and C are set to 10 and 30, B and D are set to 20 and 40
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