Distinguish between reprocessing and rollforward as database recovery techniques
What will be an ideal response?
Reprocessing and rollforward both require the use of database saves, which are backups of the database at a known state. Reprocessing as a means of recovery involves recovering the database from the last database save and having the application programs reprocess all the transactions since the save. Rollforward as a means of recovery involves recovering the database from the last save and then reapplying all changes to the database. Reprocessing does not always reproduce the original database contents correctly since minute changes in processing by the application programs may result in changes in data manipulation.
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A company is considering an iron ore extraction project that requires an initial investment of $512,000 and will yield annual cash inflows of $156,000 for four years
The company's discount rate is 9%. What is the NPV of the project? Present value of an ordinary annuity of $1: 8% 9% 10% 1 0.926 0.917 0.909 2 1.783 1.759 1.736 3 2.577 2.531 2.487 4 3.312 3.24 3.17 5 3.993 3.89 3.791 6 4.623 4.486 4.355 7 5.206 5.033 4.868 8 5.747 5.535 5.335 9 6.247 5.995 5.759 10 6.71 6.418 6.145 A) $6,560 B) $(102,400 ) C) $102,400 D) $(6,560 )
An agency whose appointed heads and members serve for fixed terms and cannot be removed by the U.S. president except for reasons defined by Congress is called a(n) ________ administrative agency
A) independent B) executive C) congressional D) permanent