A(n) ____ is useful for seeing a program's overall structure as well as providing a guide for making changes.
A. decision table
B. UML diagram
C. hierarchy chart
D. flowchart
Answer: C
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Assume that the rows of a table, R, are stored in an unsorted heap file, F, having M pages.
(a) If no index is available, how many I/O operations on average will be required to com- pute the result of a SELECT statement with WHERE condition a = 100, where a is an attribute of R? (b) If a secondary static hash index on attribute a is now added for accessing F, how would you calculate the cost of the query in (6a)? (c) What is a clustered index? Is the index of (6b) clustered? (d) Extendable hashing uses the concepts of global depth and local depth.
The Privacy Protection Act has been criticized by various courts and numerous citizen groups for its vagueness, ambiguity, and the overbroad scope of its content
Indicate whether the statement is true or false.
What keyboard shortcut will allow you to launch a script directly from the PowerShell ISE?
F5 F3 Ctrl+L Ctrl+S
When a template is created, dummy ____ is/are used to verify the formulas in the template.
A) formulas B) data C) formatting D) page layout.