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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In ____, the target host transmits connection-succeeded messages for active ports and host-unreachable messages for inactive ports.?
A. ?UDP scanning B. ?ping scanning C. ?TCP connect scanning D. ?IP protocol scanning
What is wrong with this function?
```void Multiply( int x, int y ) { int z; z = x * y; return z; }``` A. You can’t have 2 input arguments. B. Multiply doesn’t know what z is. C. The return type is void. D. There is nothing wrong with it.
What-if analysis tools can be found on the ________ tab
Fill in the blank(s) with correct word
If the color of a product varies even slightly, it will break the unconscious psychological connection with the customer or viewer¬¬¬¬¬.
a. true b. false