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Exam 2: Constructing Complex Searches

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Question 1

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In a URL the country code is always three letters, like .fra for France, or .gbr for Great Britain.

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verified

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Question 2

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The area where sets overlap is called the ____________________ of the sets.

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Question 3

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MetaCrawler, Dogpile, and Vivisimo are all examples of __________.

Forcing the order of operation means that you use quotation marks in your search in order to command the search engine to look at the words inside the quotation marks.

A search engine usually reads your search query from right to left.

The best time to use AND is when your initial search found too few results.

What does the Boolean operator OR do in a search query and why would you chose to use it?

A way to visualize how Boolean operators work is by using drawings called Venn diagrams.

The - (minus sign) is a variation of the Boolean operator ____________________.

Government Web pages often end in ____________________.

What does the Boolean operator AND do to a search and why would you chose to use it?

The most common default operators are ________________ and ________________.

What does including the Boolean operator AND NOT in you search query do and why would you chose to use it in a search?

In a Venn diagram, the section where two circles overlap is called the union of the two sets.

The + (plus sign) is sometimes used for the Boolean operator ____________________.

"At least one of the words" is an alternate way of expressing the Boolean operator ____________________.

Combining keywords with OR should retrieve more relevant results.

John Venn and George Boole were English mathematicians who developed Venn diagrams and Boolean logic to be used for online searching.

Explain the relationship between Boolean logic and search engines.

Using parentheses ____________________ the order of operation in your search query.