Information Retrieval MCQs

1) An ___________ is the topic about which the user desires to know more.

A)effectiveness B)ad hoc retrieval C)information need D) precision

Correct Ans: information need

2) The simplest form of document retrieval is for a computer to do this sort of linear scan through documents known as ___________.

A)Terms B)incidence matrix C)index D)grepping

Correct Ans: grepping

3)____________ is the process of selecting how to organize the work of answering a query so that the least total amount of work needs to be done by the system. 

A)Intersect B)Query optimization C)posting merge D)conjunctive query

Correct Ans: Query optimization

4) ____________ has been used for dictionary lookup in some search engines.

A)Hashing B)keys C)binary tree D)B-tree

Correct Ans: Hashing

5) A ___________ on the dictionary is a convenient way of handling trailing wildcard queries.

A)Hashing B) search tree C) B-tree D)reverse B-tree

Correct Ans: search tree

6) Our first special index for general wildcard queries is the ___________.

A)permuterm index B)k-gram indexes C)inverted index D)All of these

Correct Ans: permuterm index

7) ___________ misspellings that arise because the user types a query that sounds like the target term.

A)semaphore B)Jaccard coefficient C)soundex D)phonetic correction

Correct Ans: phonetic correction

8) link analysis is one of many factors considered by ___________ in computing a composite score for a web page on any given query.

A)Web application B)web search engines C)Web graph D)PageRank

Correct Ans: web search engines

9) The __________ of a node will depend on the link structure of the web graph.

A)matrix B)PageRank C)teleport D)probability

Correct Ans: PageRank

10) A good ____________ is one that points to many good authorities.

A)specific page B)hub page C)authority page D)web page

Correct Ans: hub page

11) Running ________ across a variety of queries reveals some interesting insights

about link analysis.

A)hub B)HITS  C)PageRank D)teleport

Correct Ans: HITS 

12) ___________ the point of a cluster is to solve large computing problems on cheap commodity machines or nodes

A)MapReduce B)Hadoop C)HITS D)Similarity

Correct Ans: MapReduce

13) The first web search engine known to apply link analysis on a large scale was ____________.

A)opera B)Google C)yahoo D)bing

Correct Ans: Google

14) __________ provide consultancy services for clients who seek to have their

web pages rank highly on selected keywords.

A)paid placement B)Lingual Retrieval C)Web Search D)SEOs

Correct Ans: SEOs

15) __________ use as a language for encoding text and documents.

A)CSS B)XML  C)HTML D)SGML

Correct Ans: XML

16) The first challenge in __________ is that users want us to return parts of documents, not entire documents as IR systems.

A)structured retrieval B)unstructured retrieval C)indexing unit D)XML retrival

Correct Ans: structured retrieval

17) In _____________ ,the information sought is the main topic of the component and the component is a meaningful unit of information.

A)No coverage B)Too large C)Too small D)Exact coverage

Correct Ans: Exact coverage

18) ___________ serves as a framework within which we match the text of the query with the text of the XML documents.

A)text centric approach B)Data-centric approach C)data-centric XML D)XML structure

Correct Ans: XML structure