Explain the process of using optimistic locking
What will be an ideal response?
Optimistic locking makes the assumption that no conflicts will occur. Data is read, the transaction is processed, updates are issued, and then a check is made to see if a conflict occurred. If a conflict does occur, the transaction is repeated until it completes without a conflict. Thus, the lock is not secured until the transaction is completed. This reduces the amount of time that the lock is held.
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On a cost per contact basis, personal selling is much more expensive than national advertising
Indicate whether the statement is true or false
List two advantages and two disadvantages of questionnaires
An important step in avoiding discriminatory practices during selection is to
A. base selection decisions solely on interviews. B. use multiple interviewers for each applicant. C. use validation studies to demonstrate the job-relatedness of a selection instrument. D. require all applicants to complete an application form.
The cost equalization point:
A) is used to select the lowest cost of two or more alternative processes. B) is the point where unit cost of a process are at a minimum. C) is used to show the potential profit of a process. D) shows the lot size where costs are minimized. E) all of the above