Information retrieval systems MCQs

What is an Information Retrieval (IR) system primarily designed to do?
- a) Store data securely
- b) Index and retrieve relevant information from a collection of data
- c) Encrypt data for security
- d) Provide access to online courses
- Answer: b) Index and retrieve relevant information from a collection of data
In an Information Retrieval system, what does “query” refer to?
- a) A formal request for data storage
- b) A search request made by the user
- c) A security protocol
- d) A data backup process
- Answer: b) A search request made by the user
Which of the following is NOT a component of an Information Retrieval system?
- a) Indexing
- b) Ranking
- c) Encryption
- d) Retrieval
- Answer: c) Encryption
What is the purpose of indexing in an Information Retrieval system?
- a) To encrypt data
- b) To organize and make data searchable
- c) To limit access to data
- d) To delete outdated data
- Answer: b) To organize and make data searchable
Which of the following is an example of an Information Retrieval system used on the web?
- a) Database management system (DBMS)
- b) Search engine like Google
- c) Email client
- d) Social media platform
- Answer: b) Search engine like Google
The process of ranking search results in an Information Retrieval system is based on:
- a) The alphabetical order of documents
- b) The relevance of documents to the query
- c) The date of document creation
- d) The size of the documents
- Answer: b) The relevance of documents to the query
Which term refers to the effectiveness and efficiency of an Information Retrieval system in providing relevant results?
- a) Retrieval accuracy
- b) Data encryption
- c) System maintenance
- d) Indexing speed
- Answer: a) Retrieval accuracy
What is the primary function of a search engine in an Information Retrieval system?
- a) Encrypting data
- b) Indexing documents
- c) Retrieving relevant information based on user queries
- d) Deleting outdated data
- Answer: c) Retrieving relevant information based on user queries
Boolean operators (AND, OR, NOT) are commonly used in Information Retrieval systems to:
- a) Encrypt data
- b) Filter and refine search queries
- c) Rank search results
- d) Backup data
- Answer: b) Filter and refine search queries
Which of the following is a feature of modern Information Retrieval systems?
- a) Limited storage capacity
- b) Lack of user interaction
- c) Personalization of search results
- d) Slow retrieval speed
- Answer: c) Personalization of search results
In an Information Retrieval system, relevance feedback is used to:
- a) Encrypt search queries
- b) Improve the accuracy of search results based on user feedback
- c) Delete irrelevant data
- d) Rank documents alphabetically
- Answer: b) Improve the accuracy of search results based on user feedback
Which term refers to the process of extracting keywords from a document for indexing purposes?
- a) Query expansion
- b) Keyword extraction
- c) Indexing speed
- d) Retrieval accuracy
- Answer: b) Keyword extraction
A synonym ring in Information Retrieval systems is used to:
- a) Encrypt data
- b) Expand search queries to include synonyms
- c) Rank search results
- d) Delete duplicate documents
- Answer: b) Expand search queries to include synonyms
What is the purpose of a relevance model in Information Retrieval?
- a) To encrypt search queries
- b) To rank documents based on relevance to a query
- c) To limit search results
- d) To delete outdated documents
- Answer: b) To rank documents based on relevance to a query
Which of the following factors can affect the performance of an Information Retrieval system?
- a) Encryption standards
- b) Retrieval accuracy
- c) Ranking algorithms
- d) Indexing speed
- Answer: c) Ranking algorithms
Vector space model and probabilistic model are examples of:
- a) Indexing methods
- b) Ranking algorithms
- c) Encryption techniques
- d) Data storage formats
- Answer: b) Ranking algorithms
In Information Retrieval systems, what is term frequency-inverse document frequency (TF-IDF) used for?
- a) Encrypting documents
- b) Calculating relevance scores for terms in documents
- c) Deleting duplicate documents
- d) Indexing speed
- Answer: b) Calculating relevance scores for terms in documents
Which of the following is an example of an open-source Information Retrieval system?
- a) Google Search
- b) Microsoft Bing
- c) Elasticsearch
- d) Yahoo Search
- Answer: c) Elasticsearch
The process of crawling and indexing web pages is a key component of:
- a) Data encryption
- b) Search engine optimization (SEO)
- c) Information Retrieval systems
- d) Data storage
- Answer: c) Information Retrieval systems
Which of the following is NOT a type of Information Retrieval system?
- a) Web search engines
- b) Library catalogs
- c) Email clients
- d) Online gaming platforms
- Answer: d) Online gaming platforms

Information retrieval systems MCQs

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