Information retrieval systems MCQs January 8, 2026May 21, 2024 by u930973931_answers 20 min Score: 0 Attempted: 0/20 Subscribe 1. 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 2. 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 3. Which of the following is NOT a component of an Information Retrieval system? (A) Indexing (B) Encryption (C) Ranking (D) Retrieval 4. 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 (A) To encrypt data (B) To organize and make data searchable (C) To limit access to data (D) To delete outdated data 5. Which of the following is an example of an Information Retrieval system used on the web? (A) Database management system (DBMS) (B) Email client (C) Search engine like Google (D) Social media platform 6. The process of ranking search results in an Information Retrieval system is based on: (A) The relevance of documents to the query (B) The alphabetical order of documents (C) The date of document creation (D) The size of the documents 7. Which term refers to the effectiveness and efficiency of an Information Retrieval system in providing relevant results? (A) Data encryption (B) Retrieval accuracy (C) System maintenance (D) Indexing speed 8. What is the primary function of a search engine in an Information Retrieval system? (A) Encrypting data (B) Retrieving relevant information based on user queries (C) Indexing documents (D) Deleting outdated data 9. 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 10. Which of the following is a feature of modern Information Retrieval systems? (A) Personalization of search results (B) Lack of user interaction (C) Limited storage capacity (D) Slow retrieval speed 11. 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 12. Which term refers to the process of extracting keywords from a document for indexing purposes? (A) Query expansion (B) Indexing speed (C) Keyword extraction (D) Retrieval accuracy 13. 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 14. What is the purpose of a relevance model in Information Retrieval? (A) To encrypt search queries (B) To limit search results (C) To rank documents based on relevance to a query (D) To delete outdated documents 15. Which of the following factors can affect the performance of an Information Retrieval system? (A) Ranking algorithms (B) Retrieval accuracy (C) Encryption standards (D) Indexing speed 16. Vector space model and probabilistic model are examples of: (A) Indexing methods (B) Ranking algorithms (C) Encryption techniques (D) Data storage formats 17. In Information Retrieval systems, what is term frequency-inverse document frequency (TF-IDF) used for? (A) Encrypting documents (B) Indexing speed (C) Deleting duplicate documents (D) Calculating relevance scores for terms in documents 18. 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 19. The process of crawling and indexing web pages is a key component of: (A) Data encryption (B) Information Retrieval systems (C) Search engine optimization (SEO) (D) Data storage 20. Which of the following is NOT a type of Information Retrieval system? (A) Web search engines (B) Online gaming platforms (C) Email clients (D) Library catalogs