Which of the following is not a benefit of using macros?
What will be an ideal response?
Macros cannot contain viruses
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There are rare occasions when both the second and third argument of an IF function are executed
Indicate whether the statement is true or false
The default number of sheets and the default view for Excel worksheets are ____, respectively.
A. Two and Normal B. Two and Page Layout C. One and Page Layout D. One and Normal
The Add pathfinder combines two or more overlapping objects into one object.
Answer the following statement true (T) or false (F)
The kill-wait concurrency control combines the concepts of the immediate update concurrency control and the timestamp-ordered control. As in the timestamp-ordered system, when a transaction, T1 is initiated, it is assigned a timestamp, TS(T1). However, the system uses the same conflict table as the immediate-update pessimistic control does and resolves conflicts using the rule
If transaction T1 makes a request that conflicts with an operation of active transaction, T2 if TS(T1) < TS(T2), then abort T2, else make T1 wait until T2 terminates. where abort T2 is referred to as a kill because T1 kills T2. a. Showthat the kill-wait control serializes in commit order. b. Give a schedule produced by a kill-wait control that is not serializable in timestamp order. c. Explain why deadlock does not occur in a kill-wait control.