Deck 5: Locating Information on the World Wide Web

Question 1

Public libraries have very little information that is not also available online .

Answer 1

False

Question 2

As the query processor is putting together a hit list, the URLs found by the intersecting process are sorted by page ranking, highest to lowest, and returned to the user in that order .

Answer 2

True

Question 3

The AND operator is one of the Boolean operators .

Answer 3

True

Question 4

The query processor looks up tokens or search terms in the index .

Question 5

Crawlers consider descriptive text when adding a page's URL to the index .

Question 6

The main work of a crawler is to build an index .

Question 7

In an advanced search, you can use the AND operator or the OR operator to narrow down search results but you cannot use both operators in one statement .

Question 8

Search engines are able to answer user queries very quickly because crawling is a very speedy process .

Question 9

A hit on a page always means the search terms were found on that page .

Question 10

Search engines like Google and Bing do not allow you to enter search terms using natural language .

Question 11

You should never accept information on the web as authoritative .

Question 12

No one organizes all the information posted on the web .

Question 13

When using Google, the tilde (~) can be used as an abbreviation for the NOT operator .

Question 14

Google's Advanced Search allows you to filter a search by specifying a site or a domain .

Question 15

To make the task of intersecting multiple lists a little easier, the URL lists are alphabetized .

Question 16

Search engines crawl only a fraction (probably less than half) of the web .

Question 17

The order in which hits are returned to a query is partially determined by a number that Google calls PageRank .

Question 18

The standard Google search displays the first dozen hits and each hit contains only the text from that hit's <title></title> tags along with a summary of the user's search query .

Question 19

The crawler considers almost anything followed by an asterisk symbol to be a token, except short words like a, an, and the .

Question 20

The order in which hits are returned to a page is determined, in part, by

A) anchor text
B) page rank
C) meta data
D) page order

Question 21

Which search engine technique will help avoid overconstraining?

A) removing terms from the search using the NOT operator
B) adding as many descriptive words as possible
C) beginning with an inclusive search and adding more words, one at a time
D) including a general topic term

Question 22

In a web search, a match to a query is known as a(n)

A) hit
B) URL list
C) intersection
D) None of these

Question 23

A Google search result includes a snippet for each web page in the returned list . In this context, what is a snippet?

A) the text between the page's <title></title> tags
B) the site's URL
C) a preview of what might be on the page
D) None of these

Question 24

One example of descriptive text is anchor text which is

A) included within a <meta> tag
B) a phrase within the page's <title></title> tags
C) highlighted link text, specified inside <a></a> tags that describes the page it links to
D) a textual description of an image

Question 25

Which of the following is an effective technique for using a hit list?

A) Skim the top-level information and decide which links to explore further .
B) Randomly select links to open .
C) Check every hit by opening every link .
D) All of these

Question 26

A search engine consists, in part, of

A) a spider and a web
B) a link and a crawler
C) a crawler and a query processor
D) a snoop and an index

Question 27

If quotes surround the phrase "my favorite food", the search would find all pages with

A) the exact phrase my favorite food
B) the word favorite
C) the word food
D) the word my

Question 28

A search that uses the logical operator OR in the search squirrels OR crows requires

A) that both words, squirrels and crows, be found on the page
B) that the exact phrase, squirrels or crows, be found on the page
C) that either the word squirrels or the word crows be found on the page
D) None of these

Question 29

A search for "baseball"AND ("stadiums"OR "parks") AND NOT "national parks"would look for

A) baseball or stadiums or parks but not national parks
B) baseball stadiums or baseball parks but not national parks
C) baseball and stadiums and parks but not national parks
D) None of these

Question 30

Which of the following is the best way to find authoritative information?

A) Choose reports from tertiary sources .
B) Get the information needed from Wikipedia .
C) Choose information from respected organizations .
D) Seek a single online source .

Question 31

A weakness of Wikipedia is that

A) it covers only a limited number of topics
B) it contains old information which is never updated
C) the editing of content is highly restricted
D) the content is not always validated by experts

Question 32

In a search engine the index is built by the

A) linker
B) crawler
C) query processor
D) indexer

Question 33

Which of the following research practices will help ensure that you obtain highly reliable information when you do a search?

A) assess the site's authoritativeness
B) never rely on a single source
C) question the information
D) All of these

Question 34

The query processor processes an AND query by

A) intersecting
B) using a GUI
C) crawling
D) removing duplicates

Question 35

Logical operators can be combined and grouped using

A) parentheses
B) plus and minus signs
C) curly brackets
D) angle brackets

Question 36

A(n) ________ is a collection of computer programs that helps find information on the web .

Question 37

A(n) ________, built by the crawler, is a list of tokens that are associated with the web page .

Question 38

Web posts are ________; that is, no one limits what people post .

Question 39

The ________ of a search engine visits web sites in order to index their contents .

Question 40

Information found by the crawler of a search engine is organized into a(n) ________ .

Question 41

A(n) ________ source is a person who has direct knowledge of information .

Question 42

In a search, using ________ around words forces the search engine to look for an exact match .

Question 43

________ and subtracting search terms can remove extraneous hits .

Question 44

To leave a specific term out of a search, you can use the ________ logical operator .

Question 45

To locate pages containing multiple words, the query processor fetches the index lists for each of the terms and ________ the lists to find URLs that are in all of those lists .

Question 46

Words on a web page, along with ________ text within tags, are used by the search engine crawler in a search .

Question 47

The second step in an indexed search is called query ________ .

Question 48

Multiple word queries typed into a search engine are generally ________ queries .

Question 49

A logical ________ specifies a logical relationship between the words it connects .

Question 50

When searching on Google, the plus sign (+) is the same as using the ________ operator .

Question 51

The order in which hits are returned to a query is determined, in part, by a number that Google calls the ________ .

Question 52

A(n) ________ search means to look only on one web site .