According to Boolean logic, what does it mean when you put the word “OR” between radiation/nuclear in your web search? (i.e. radiation OR nuclear)

1.   ?    Results contain both radiation and nuclear.
2.   ?    Results contain at least one of these terms.
3.   ?    Results contain radiation but not also the term nuclear.
4.   ?    Results exclude both of the two terms.

According to Boolean logic, what does it mean when you put the word “AND” between radiation/nuclear in your web search? (i.e. radiation AND nuclear)

1.   ?    Results contain both radiation and nuclear.
2.   ?    Results contain at least one of these terms.
3.   ?    Results contain radiation but not also the term nuclear.
4.   ?    Results exclude both of the two terms.

According to Boolean logic, what does it mean when you put the word “NOT” between radiation/nuclear in your web search? (i.e. radiation NOT nuclear)

1.   ?    Results contain both radiation and nuclear.
2.   ?    Results contain at least one of these terms.
3.   ?    Results contain radiation but not the term nuclear.
4.   ?    Results exclude both of the two terms.

According to Boolean logic, what does plus sign “+” denote in a web search? (e.g. global warming +green house)

1.   ?    NOT
2.   ?    OR
3.   ?    AND
4.   ?    None of above

According to Boolean logic, what does minus sign “-” denote in a web search? (e.g. global warming –green house)

1.   ?    NOT
2.   ?    OR
3.   ?    AND
4.   ?    None of above

If you enter keywords or phrases in quotes in your web search (e.g. “birds migration”), which of the following results is probably derived from such search?

1.   ?    Why are observers in…temperate climates so fascinated by bird migration? Because birds make us feel….
2.   ?    Migration of birds
3.   ?    Straits of Messina International Birds migration Survey (April - May)
4.   ?    None of above

What does the URL "http://www.eric.gov/" tell you?

1.   ?    It is a government institution's site.
2.   ?    It is a commercial site.
3.   ?    The web designer's name is Eric.
4.   ?    This site is in Taiwan.

Which domain of URL denotes that a website is designed for commercial purpose?

1.   ?    .com
2.   ?    .edu
3.   ?    .gov
4.   ?    .org

Which of the following about web search engines is NOT true?

1.   ?    A search engine is a searchable database of Internet files collected by a computer program.
2.   ?    Search engines rarely contain the most recent documents posted to the Internet.
3.   ?    Google is a great search engine and you can use it exclusively to find everything.
4.   ?    Google ranks pages based on the number of links from pages ranked high by the service.

Which of the following about subject directories is NOT true?

1.   ?    A subject directory is a service that offers a collection of links to Internet resources submitted by site creators or evaluators and organized into subject categories.
2.   ?    Academic directories contain carefully chosen and annotated lists of quality Internet sites.
3.   ?    Subject directories are useful for general topics, for topics that need exploring, and for in-depth research.
4.   ?    Yahoo is a famous directory which carefully evaluates user-submitted content when adding Web pages to its database.