What are the three major types of navigation systems? Explain the differences among them.
What will be an ideal response?
A hierarchical navigational system implements a hierarchical organizational system and provides users with a top-down view of a site. Ad hoc systems serve a hypertext organizational structure and typically appear as embedded links in a Web page. A database navigational system implements a database organizational structure. A user types in a word or phrase to find related pages. Most sites should have some form of hierarchical navigational system. Ad hoc systems involve links that are added typically because a hierarchical system can’t accommodate a particular association. Database navigational systems typically appear as an ancillary system but rarely as the primary navigation system for a site.
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Answer the following questions true (T) or false (F)
1. True/False: To obtain information from a database, a programmer or database administrator would use a query. 2. True/False: A rectangular grid of numbers (rows and columns) is known as a matrix. 3. True/False: The serial search cannot be used with a list of names.
To maintain the aspect ratio, hold the ____ key as you drag a corner handle of an instance.
a. ESC b. CTRL c. ALT d. SHIFT
The _________ byte specifies whether an operand is in a register or in memory, and if it is in memory, then fields within the byte specify the addressing mode to be used.
Fill in the blank(s) with the appropriate word(s).
You can connect a high-definition television to your computer using a(n) ________ port
Fill in the blank(s) with correct word