All of the following are concerns about surface websites except ______ .
A. they are readily available
B. they are not permanent sources of information
C. they have not been peer reviewed
D. they have not been evaluated
Answer: A
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The ____ aggregate function determines the average of the field values for records meeting the criteria in each group.
A. Var B. Average C. Aggregate D. Avg
What is stored in the header node in the red-black tree?
a. A key of negative infinity b. A right pointer that points to the real root c. A left pointer that points to the real root d. (a) and (b) e. all three of (a), (b), and (c)
If two classes have an IS_A relationship, we should use:
A. composition B. polymorphism C. inheritance D. static binding
Using a ____ view of the project can make entering many details for a single task easier.
A. Gantt Chart B. Form C. Network Diagram D. Calendar