Sentinels are data values used to signal either the start or the end of a data series.
Answer the following statement true (T) or false (F)
True
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The field you use for the primary key should have a checkmark in the _____ box.
A. Required B. Indexed C. Validated D. Unique
The Z-axis represents the ____.
A. height B. depth C. width D. dimension
Fill in the missing event that causes deadlock in a database. There are two processes (P1 and P2), each of which needs to update two records (R1 and R2) and the following sequence leads to a deadlock:1. P1 accesses R1 and locks it.2. P2 accesses R2 and locks it.3. ____4. P2 requests R1, which is locked by P1.
A. P2 releases R2. B. P1 requests R1 again. C. P1 requests R2, which is locked by P2. D. P2 releases R1.
An asterisk (*) following a cell reference in a formula is the arithmetic operator that directs Excel to perform the division operation.
Answer the following statement true (T) or false (F)