A UNION clause in an SQL statement is used to ________
A) combine one or more queries
B) identify the query criteria
C) list the fields a query should display
D) define how fields from related tables should be joined
A
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What router command shows how many subnets are configured?
a. show run b. show ip int brief c. show list d. show ip route
The statement “Stack
Fill in the blank(s) with the appropriate word(s).
Which of the following statements is false?
a. In the UML, each class is modeled in a class diagram as a rectangle with three compartments. The top one contains the class’s name centered horizontally in boldface. The middle one contains the class’s attributes, which correspond to instance variables in Java. The bottom one contains the class’s operations, which correspond to methods and constructors in Java. b. UML represents instance variables as an attribute name, followed by a colon and the type. c. Private attributes are preceded by the keyword private in the UML. d. The UML models operations by listing the operation name followed by a set of parentheses. A plus sign (+) in front of the operation name indicates that the operation is a public.
Answer the following statement(s) true (T) or false (F)
1. Once you have made a selection, you cannot modify it.
2. When using the Transform Selection command, after creating a selection, when you drag, the size of the marquee changes.
3. You can press and hold the Ctrl key to temporarily select the Add to selection button on the options bar as you create a selection.
4. In the accompanying figure, you can click unselected pixels with the Magic Wand Tool to add them to the selection.