Apache Solr Quiz – Apache Solr Multiple Choice Questions and Answers: Hey! Are you preparing for the Interview and would like to know how much enough knowledge you have in Apache Solr? Then, make sure that go through this article. Apache Solr is an open-source search platform that is used to create powerful search applications. It is based on Apache Lucene, a widely-used information retrieval library. Solr was developed by the Apache Software Foundation and provides a scalable, reliable, and fault-tolerant way to index and search large amounts of data across multiple sources. With its extensive search capabilities, Solr has become a popular choice for a wide range of applications such as e-commerce, content management, and scientific research. Kinldy make a move to go through the Top 60 Apache Solr MCQs to prepare well for the interview.
Apache Solr Quiz
Just for the sake of your’s, we have articulated this page with Apache Solr Quiz. It can be noted that the questions which you find here in the Apache Solr Online Quiz can be considered as reference. Hence, take up the Apache Solr MCQ Quiz right now and know in what areas of the Apache Solr Concepts you were needed improvement. Moreover, in one go you can learn the new concepts from the Apache Solr Multiple Choice Questions and Answers.
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Apache Solr Quiz – Details
| Quiz Name | Apache Solr |
| Exam Type | MCQ (Multiple Choice Questions) |
| Category | Technical Quiz |
| Mode of Quiz | Online |
Top 60 Apache Solr MCQs with Answers | Practice Online Quiz
1. Which of the following is NOT a feature of Apache Solr?
a) Indexing and searching documents
b) Faceted search
c) Real-time indexing
d) Machine learning
Answer: d) Machine learning.
Explanation: Apache Solr is primarily used for indexing and searching documents, providing faceted search capabilities, and real-time indexing. Although machine learning can be used in combination with Solr, it is not a built-in feature of Solr itself.
2. What is the default query parser used by Apache Solr?
a) Standard Query Parser
b) DisMax Query Parser
c) Function Query Parser
d) QueryElevationComponent
Answer: a) Standard Query Parser.
Explanation: Apache Solr uses the Standard Query Parser by default, which provides support for a wide range of query syntax and operators.
3. Which of the following is NOT a type of field in Apache Solr?
a) TextField
b) DateField
c) EnumField
d) GeoField
Answer: c) EnumField.
Explanation: Apache Solr provides a variety of field types to support different data types and search requirements, including TextField for text data, DateField for date and time data, and GeoField for geographic data. However, there is no built-in EnumField type.
4. What is the purpose of a filter query in Apache Solr?
a) To filter search results based on specific criteria
b) To define the scoring algorithm used by Solr
c) To specify the search field to be used
d) To retrieve additional related documents
Answer: a) To filter search results based on specific criteria.
Explanation: A filter query in Apache Solr is used to apply a filter to the search results based on specific criteria, such as a price range, category, or availability.
5. What is sharding in Apache Solr?
a) The process of dividing a large index into smaller, more manageable pieces
b) The process of storing a copy of the index on multiple servers for redundancy
c) The process of ranking search results based on relevance
d) The process of optimizing the performance of the Solr server
Answer: a) The process of dividing a large index into smaller, more manageable pieces.
Explanation: Sharding is a technique used in Apache Solr to partition a large index into smaller, more manageable pieces called shards. This helps to improve performance and scalability, as well as facilitate distributed search.
6. Which of the following is NOT a component of an Apache Solr query?
a) Query parser
b) Filter query
c) Highlighter
d) Index analyzer
Answer: d) Index analyzer.
Explanation: An index analyzer is used to process and tokenize the text data during indexing, but it is not a component of a Solr query. The other options listed are all components of a Solr query.
7. What is the purpose of the Copy Field feature in Apache Solr?
a) To specify which fields to include in the search index
b) To copy the contents of one field to another
c) To specify the default search field to use
d) To apply transformations to the search query
Answer: b) To copy the contents of one field to another.
Explanation: The Copy Field feature in Apache Solr is used to copy the contents of one field to another, which can be useful for aggregating data or providing additional search options.
8. Which of the following is NOT a similarity algorithm supported by Apache Solr?
a) BM25
b) TF-IDF
c) Okapi BM25
d) Jaccard similarity
Answer: d) Jaccard similarity.
Explanation: Apache Solr supports several similarity algorithms for ranking search results, including BM25, TF -IDF, and Okapi BM25, but it does not support Jaccard similarity.
9. What is the purpose of the Solr Admin UI?
a) To perform searches and view search results
b) To configure and manage the Solr server
c) To develop custom Solr plugins and extensions
d) To analyze search performance and statistics
Answer: b) To configure and manage the Solr server.
Explanation: The Solr Admin UI is a web-based interface that provides a graphical way to configure and manage the Solr server, including managing indexes, defining schemas, and monitoring performance.
10. What is the purpose of the SolrCloud feature in Apache Solr?
a) To provide support for distributed search and indexing
b) To enable real-time indexing of documents
c) To provide support for machine learning algorithms
d) To provide advanced text analysis and tokenization capabilities
Answer: a) To provide support for distributed search and indexing.
Explanation: SolrCloud is a feature in Apache Solr that provides support for distributed search and indexing, allowing multiple Solr instances to work together as a single, highly available search engine.
11. What is a Solr core?
a) A standalone Solr server instance
b) A collection of documents and associated data stored in Solr
c) A shard of a distributed Solr index
d) A custom plugin or extension for Solr
Answer: b) A collection of documents and associated data stored in Solr.
Explanation: A Solr core is a logical container for a collection of documents and associated data stored in Solr, which can be searched and indexed independently.
12. What is the purpose of the Solr schema file?
a) To define the structure and properties of the Solr index
b) To define the syntax and operators used by the query parser
c) To define the filters and analyzers used during indexing and searching
d) To define the plugins and extensions used by Solr
Answer: a) To define the structure and properties of the Solr index.
Explanation: The Solr schema file is used to define the structure and properties of the Solr index, including the fields, field types, and other indexing options.
13. Which of the following is NOT a type of query handler in Apache Solr?
a) Standard Query Handler
b) Ping Query Handler
c) MoreLikeThis Query Handler
d) Index Analyzer Query Handler
Answer: d) Index Analyzer Query Handler.
Explanation: There is no built-in Index Analyzer Query Handler in Apache Solr. The other options listed are all valid query handlers in Solr.
14. What is the purpose of the Solr request handler?
a) To process incoming requests and generate search results
b) To provide support for distributed search and indexing
c) To define the structure and properties of the Solr index
d) To manage and configure the Solr server
Answer: a) To process incoming requests and generate search results.
Explanation: The Solr request handler is responsible for processing incoming search requests and generating the corresponding search results.
15. What is the purpose of the Solr filter cache?
a) To store the results of frequently used filter queries for faster performance
b) To store a copy of the entire Solr index for redundancy and high availability
c) To store the results of frequently used search queries for faster performance
d) To store the data used by the Solr suggester feature
Answer: a) To store the results of frequently used filter queries for faster performance.
Explanation: The Solr filter cache is used to cache the results of frequently used filter queries, which can improve search performance by reducing the need to recompute the results for each search request.
16. Which of the following is NOT a type of Solr filter?
a) Standard Tokenizer Filter
b) Stopword Filter
c) Synonym Filter
d) Jaccard Filter
Answer: d) Jaccard Filter.
Explanation: There is no built-in Jaccard Filter in Apache Solr. The other options listed are all valid types of filters in Solr.
17. Which of the following is a valid Solr query parameter for sorting search results?
a) q
b) fq
c) sort
d) fl
Answer: c) sort.
Explanation: The “sort” parameter is used to specify the sorting order for search results in Apache Solr.
18. Which of the following is a valid Solr query parameter for faceting search results?
a) q
b) fq
c) facet
d) sort
Answer: c) facet.
Explanation: The “facet” parameter is used to enable faceting on search results in Apache Solr, allowing users to drill down into subsets of the search results based on specific criteria.
19. What is the purpose of the Solr suggester feature?
a) To provide autocomplete and query suggestion functionality for search queries
b) To provide advanced text analysis and tokenization capabilities
c) To provide support for distributed search and indexing
d) To enable real-time indexing of documents
Answer: a) To provide autocomplete and query suggestion functionality for search queries.
Explanation: The Solr suggester feature is used to provide autocomplete and query suggestion functionality for search queries, based on a variety of configurable algorithms and dictionaries.
20. What is the purpose of the Solr replication feature?
a) To enable real-time indexing of documents
b) To provide support for distributed search and indexing
c) To provide backup and disaster recovery capabilities for the Solr index
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To provide backup and disaster recovery capabilities for the Solr index.
Explanation: The Solr replication feature is used to provide backup and disaster recovery capabilities for the Solr index, allowing index data to be replicated to one or more backup servers for redundancy and fault tolerance.
21. Which of the following is NOT a valid Solr query parser?
a) Lucene Query Parser
b) Dismax Query Parser
c) Standard Query Parser
d) Elastic Query Parser
Answer: d) Elastic Query Parser.
Explanation: There is no built-in Elastic Query Parser in Apache Solr. The other options listed are all valid query parsers in Solr.
22. What is the purpose of the Solr suggester build process?
a) To generate the dictionary files used by the suggester feature
b) To generate the Solr index from a set of input documents
c) To analyze the performance and accuracy of the suggester feature
d) To optimize the search performance of the Solr server
Answer: a) To generate the dictionary files used by the suggester feature.
Explanation: The Solr suggester build process is used to generate the dictionary files used by the suggester feature, based on a set of input documents and configurable parameters.
23. What is the purpose of the Solr highlighter feature?
a) To provide syntax highlighting for search results
b) To display the most relevant search results first
c) To display search results in a tabular format
d) To highlight the matching terms in search results
Answer: d) To highlight the matching terms in search results.
Explanation: The Solr highlighter feature is used to highlight the matching terms in search results, making it easier for users to see how their search terms were matched against the indexed documents.
24. What is the purpose of the Solr function query?
a) To define custom scoring functions for search queries
b) To enable real-time indexing of documents
c) To provide backup and disaster recovery capabilities for the Solr index
d) To provide advanced text analysis and tokenization capabilities
Answer: a) To define custom scoring functions for search queries.
Explanation: The Solr function query is used to define custom scoring functions for search queries, allowing users to fine-tune the relevance ranking of search results based on specific criteria.
25. Which of the following is a valid Solr field type?
a) text
b) float
c) datetime
d) All of the above
Answer: d) All of the above.
Explanation: Solr supports a wide range of field types, including text, float, datetime, and many others.
26. What is the purpose of the Solr More Like This feature?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To suggest similar documents based on a set of input parameters
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To suggest similar documents based on a set of input parameters.
Explanation: The Solr More Like This feature is used to suggest similar documents based on a set of input parameters, such as a specific document ID or a set of search terms.
27. Which of the following is a valid Solr query parameter for specifying a search query?
a) q
b) fq
c) sort
d) fl
Answer: a) q.
Explanation: The “q” parameter is used to specify a search query in Apache Solr.
28. Which of the following is NOT a valid Solr request handler?
a) Standard Request Handler
b) Facet Request Handler
c) Update Request Handler
d) Index Request Handler
Answer: d) Index Request Handler.
Explanation: There is no built-in Index Request Handler in Apache Solr. The other options listed are all valid request handlers in Solr.
29. What is the purpose of the Solr spellchecker feature?
a) To provide autocomplete and query suggestion functionality for search queries
b) To suggest alternative spellings for search queries
c) To provide support for distributed search and indexing
d) To enable real-time indexing of documents
Answer: b) To suggest alternative spellings for search queries.
Explanation: The Solr spellchecker feature is used to suggest alternative spellings for search queries, based on a configurable dictionary and algorithms.
30. What is the purpose of the Solr suggester dictionary?
a) To store the raw input data for the suggester feature
b) To store the generated dictionary files used by the suggester feature
c) To store the Solr index data
d) To store the configuration files for the Solr server
Answer: b) To store the generated dictionary files used by the suggester feature.
Explanation: The Solr suggester dictionary is used to store the generated dictionary files used by the suggester feature, based on a set of input documents and configurable parameters.
31. Which of the following is a valid Solr query parameter for filtering search results?
a) q
b) fq
c) sort
d) fl
Answer: b) fq.
Explanation: The “fq” parameter is used to filter search results in Apache Solr, based on a set of query filters.
32. Which of the following is a valid Solr query parameter for specifying the fields to be returned in search results?
a) q
b) fq
c) sort
d) fl
Answer: d) fl.
Explanation: The “fl” parameter is used to specify the fields to be returned in search results in Apache Solr.
33. What is the purpose of the Solr field cache?
a) To store the Solr index data in memory for faster search performance
b) To store the generated dictionary files used by the suggester feature
c) To provide advanced text analysis and tokenization capabilities
d) To enable real-time indexing of documents
Answer: a) To store the Solr index data in memory for faster search performance.
Explanation: The Solr field cache is used to store frequently accessed field data in memory, allowing for faster search performance.
34. Which of the following is a valid Solr query parameter for specifying the maximum number of search results to be returned?
a) q
b) fq
c) rows
d) fl
Answer: c) rows.
Explanation: The “rows” parameter is used to specify the maximum number of search results to be returned in Apache Solr.
35. What is the purpose of the Solr join feature?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To join multiple Solr collections or cores together for distributed search and indexing
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To join multiple Solr collections or cores together for distributed search and indexing.
Explanation: The Solr join feature is used to join multiple Solr collections or cores together, allowing for distributed search and indexing across multiple datasets.
36. Which of the following is a valid Solr query parameter for specifying the starting index of search results to be returned?
a) q
b) fq
c) start
d) fl
Answer: c) start.
Explanation: The “start” parameter is used to specify the starting index of search results to be returned in Apache Solr.
37. What is the purpose of the Solr highlighting feature?
a) To provide autocomplete and query suggestion functionality for search queries
b) To highlight search terms in the returned search results
c) To enable real-time indexing of documents
d) To provide advanced text analysis and tokenization capabilities
Answer: b) To highlight search terms in the returned search results.
Explanation: The Solr highlighting feature is used to highlight search terms in the returned search results, making it easier for users to see where their search terms are located within the document.
38. Which of the following is a valid Solr query parameter for specifying the order in which search results should be returned?
a) q
b) fq
c) sort
d) fl
Answer: c) sort.
Explanation: The “sort” parameter is used to specify the order in which search results should be returned in Apache Solr.
39. What is the purpose of the Solr Distributed Search feature?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To distribute search queries across multiple Solr servers for improved search performance and scalability
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To distribute search queries across multiple Solr servers for improved search performance and scalability.
Explanation: The Solr Distributed Search feature is used to distribute search queries across multiple Solr servers, allowing for improved search performance and scalability.
40. Which of the following is a valid Solr query parameter for specifying the fields to be used for sorting search results?
a) q
b) fq
c) sort
d) fl
Answer: c) sort.
Explanation: The “sort” parameter is used to specify the fields to be used for sorting search results in Apache Solr.
41. What is the purpose of the Solr Term Vector Component?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To provide detailed information about the term vectors for individual documents in a search result
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To provide detailed information about the term vectors for individual documents in a search result.
Explanation: The Solr Term Vector Component is used to provide detailed information about the term vectors for individual documents in a search result, allowing for more advanced analysis of search results.
42. What is the purpose of the Solr MoreLikeThis feature?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To find documents that are similar to a given document
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To find documents that are similar to a given document.
Explanation: The Solr MoreLikeThis feature is used to find documents that are similar to a given document based on their content and other factors.
43. Which of the following is a valid Solr query parameter for specifying a filter query?
a) q
b) fq
c) fl
d) sort
Answer: b) fq.
Explanation: The “fq” parameter is used to specify a filter query in Apache Solr.
44. What is the purpose of the Solr SpellCheck Component?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To suggest alternative spellings for misspelled search terms
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To suggest alternative spellings for misspelled search terms.
Explanation: The Solr SpellCheck Component is used to suggest alternative spellings for misspelled search terms, helping users to find the search results they are looking for even if they have made a mistake in their search query.
45. Which of the following is a valid Solr query parameter for specifying the type of query to be executed?
a) q
b) fq
c) qt
d) sort
Answer: c) qt.
Explanation: The “qt” parameter is used to specify the type of query to be executed in Apache Solr.
46. What is the purpose of the Solr Terms Component?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To provide information about the terms used in the index
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To provide information about the terms used in the index.
Explanation: The Solr Terms Component is used to provide information about the terms used in the index, allowing for more advanced analysis of the search index.
47. Which of the following is a valid Solr query parameter for specifying the type of response format to be returned?
a) q
b) fq
c) wt
d) fl
Answer: c) wt.
Explanation: The “wt” parameter is used to specify the type of response format to be returned in Apache Solr.
48. What is the purpose of the Solr Pivot Component?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To provide a more advanced form of faceted search
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To provide a more advanced form of faceted search.
Explanation: The Solr Pivot Component is used to provide a more advanced form of faceted search, allowing users to navigate search results using hierarchical categories.
49. Which of the following is a valid Solr query parameter for specifying the number of search results to be returned?
a) q
b) fq
c) rows
d) start
Answer: c) rows.
Explanation: The “rows” parameter is used to specify the number of search results to be returned in Apache Solr.
50. Which of the following is a valid Solr query parameter for specifying the starting offset of search results to be returned?
a) q
b) fq
c) rows
d) start
Answer: d) start.
Explanation: The “start” parameter is used to specify the starting offset of search results to be returned in Apache Solr.
51. What is the purpose of the Solr Indexing Performance feature?
a) To provide autocomplete and query suggestion functionality for search queries
b) To improve the speed and efficiency of document indexing
c) To provide detailed information about the term vectors for individual documents in a search result
d) To provide advanced text analysis and tokenization capabilities
Answer: b) To improve the speed and efficiency of document indexing.
Explanation: The Solr Indexing Performance feature is used to improve the speed and efficiency of document indexing in Apache Solr.
52. Which of the following is a valid Solr query parameter for specifying the order in which search results are returned?
a) q
b) fq
c) sort
d) fl
Answer: c) sort.
Explanation: The “sort” parameter is used to specify the order in which search results are returned in Apache Solr.
53. What is the purpose of the Solr Caching feature?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To improve the speed and efficiency of search queries
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To improve the speed and efficiency of search queries.
Explanation: The Solr Caching feature is used to improve the speed and efficiency of search queries in Apache Solr by caching frequently accessed data.
54. Which of the following is a valid Solr query parameter for specifying the type of highlighting to be used in search results?
a) q
b) fq
c) hl
d) wt
Answer: c) hl.
Explanation: The “hl” parameter is used to specify the type of highlighting to be used in search results in Apache Solr.
55. What is the purpose of the Solr Update Request Processor?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To process updates to the search index
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To process updates to the search index.
Explanation: The Solr Update Request Processor is used to process updates to the search index in Apache Solr.
56. Which of the following is a valid Solr query parameter for specifying the time allowed for a search query to complete?
a) q
b) fq
c) timeAllowed
d) None
Answer: c) timeAllowed.
Explanation: The “timeAllowed” parameter is used to specify the time allowed for a search query to complete in Apache Solr.
57. What is the purpose of the Solr Query Elevation Component?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To elevate specific search results to the top of the list
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To elevate specific search results to the top of the list.
Explanation: The Solr Query Elevation Component is used to elevate specific search results to the top of the list in Apache Solr.
58. Which of the following is a valid Solr query parameter for specifying the grouping of search results?
a) q
b) fq
c) group
d) wt
Answer: c) group.
Explanation: The “group” parameter is used to specify the grouping of search results in Apache Solr.
59. What is the purpose of the Solr Query Response Writer?
a) To provide autocomplete and query suggestion functionality for search queries
b) To enable real-time indexing of documents
c) To format and output search results in a specific format
d) To provide advanced text analysis and tokenization capabilities
Answer: c) To format and output search results in a specific format.
Explanation: The Solr Query Response Writer is used to format and output search results in a specific format in Apache Solr.
60. Which of the following is a valid Solr query parameter for specifying the query parser to be used for a search query?
a) q
b) fq
c) defType
d) start
Answer: c) defType.
Explanation: The “defType” parameter is used to specify the query parser to be used for a search query in Apache Solr.
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