Solr 101 Quiz Answers – Cognitive Class

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This course presents a holistic approach to Big Data, taking both a top-down and a bottom-up approach to questions such as: What is Big Data? How do we tackle Big Data? Why are we interested in it? What is a Big Data platform?

The course emphasizes that we study Big Data to gain insight that will be used to get people throughout the enterprise to run the business better and to provide better service to customers. Rather than a implementation of a single open-source systems such as Hadoop, the course recommends that Big Data should be processed in a platform that can handle the variety, velocity, and volume of data by using a family of components that require integration and data governance. Big Data is NoHadoop (“not only Hadoop”) as well as NoSQL (“not only SQL”).

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Module 1 – Search Engines

Question: Which of the following statements is NOT correct?

  • Solr is written in C# and built around the Apache Lucene search engine.
  • Solr is a web application running on its own server.
  • Solr uses an inverted index that maps tokens to locations.
  • All of the above.
  • None of the above.

Question: Queries can be analyzed before they are submitted to Solr. True or false?

  • False
  • True

Question: Which of the following options is NOT correct?

  • You don’t explicitly have to tell Solr how to read csv files.
  • The index in Solr is composed of many documents.
  • Each document is composed of many fields.
  • Solr handles unstructured documents automatically.
  • None of the above.

Module 2 – Configuring and Adding Documents To Solr

Question: Which file specifies how documents are organized in the index?

  • solrconfig.xml
  • schema.json
  • schema.dat
  • schema.xml
  • None of the above.

Question: Fields must be indexed and stored. True or false?

  • False
  • True

Question: Which of the following methods can be used to add a document to Solr?

  • Use a client API such as SolrJ.
  • Use a data import handler.
  • Create a Solr Cell to extract text from formats like PDFs and Word documents.
  • Directly make a request to the update URL.
  • All of the above

Module 3 – Analyzers and Queries

Question: Which of the following statements is NOT correct?

  • StopFilter removes generally useless words such as “the”, “at”, “and”.
  • Analyzers consist of tokenizers and filters.
  • StandardTokenizer delimits by whitespace and punctuation, except for periods not followed by whitespace.
  • Tokenizers and filters can only be chained together in a specific order.
  • None of the above.

Question: Lowercase filter converts all letters in each token to lowercase without touching non-letters. True or false?

  • False
  • True

Question: Which of the following statements is NOT true?

  • Square brackets make the range exclusive, and curly braces are inclusive.
  • You can make a query negative by adding a minus symbol prefix.
  • You can match multiple values against the same field in a single term.
  • If the search string is an asterisk, you won’t necessarily get every document.
  • All of the above.

Module 4 – Solrj and Customization

Question: Which of the following statements is NOT correct?

  • SolrJ is the Java client API for Solr.
  • SolrJ is not as powerful as update processors and request handlers.
  • SolrJ does not manage the configuration of your server.
  • SolrJ eliminates the need to manually construct HTTP requests and handle responses.
  • All of the above.

Question: Which location does NOT contain SolrJ dependencies by default?

  • solr/example/dist
  • solr/dist/solrj-lib
  • solr/example/lib/ext
  • solr/dist
  • None of the above.

Question: SolrCloud is managed by Apache Zookeeper. True or false?

  • False
  • True

Final Exam

Question: The data model in Solr consists of (select all that apply):

  • Index, Document, Field
  • Index, Row, Column
  • Database, Storage, Data
  • None of the above
  • All of the above

Question: You have the following field in one of your documents:

title : “Game of Thrones”

The field is defined as follows:< field name=”title” type=”string” indexed=”true” /

Which of the following query strings would match the title?

  • “game of thrones”
  • “Thrones”
  • “Game of Thrones”
  • All of the above

Question: Where are document fields defined?

  • Solr web console
  • schema.xml
  • solrconfig.xml
  • None of the above
  • All of the above

Question: The first step of many Solr projects is to make a copy of the Solr example directory. True or false?

  • False
  • True

Question: The embedded zookeeper server available with Solr is suitable for production. True or false?

  • False
  • True

Question: The best way to index a SQL database is (select all that apply):

  • Data Import Handler
  • Apache Tika Extractor
  • Solrj
  • Manually
  • All of the above

Question: If you want the “title” field of your documents to be searchable, which attribute is necessary?

  • indexed=”false
  • stored=”false
  • indexed=”true
  • stored=”true
  • None of the above

Question: Where do you specify the set of analyzers that a field will use?

  • solrconfig.xml
  • The fieldType in schema.xml
  • The field in schema.xml
  • None of the above
  • All of the above

Question: Solr is a web server that communicates via HTTP. True or false?

  • False
  • True

Question: How would you configure Solr to automatically generate an “id” field for each document?

  • This is not possible
  • Add an Update Request Processor to solrconfig.xml
  • No configuration needed – Solr will fill in missing fields by default
  • Set primaryKey=”true” in the document field
  • None of the above

Question: Which of the following options is correct? (select all that apply)

  • Solr handles unstructured documents automatically.
  • The index in Solr is composed of many documents.
  • Each document is composed of many fields.
  • You don’t explicitly have to tell Solr how to read csv files.
  • All of the above

Question: Which of the following methods cannot be used to add a document to Solr?

  • Use a client API such as SolrJ.
  • Use a data import handler.
  • Create a Solr Cell to extract text from formats like PDFs and Word documents.
  • Directly make a request to the update URL.
  • None of the above

Question: Which files do not specify how documents are organized in the index? (select all that apply)

  • schema.xml
  • schema.json
  • schema.dat
  • solrconfig.xml
  • config.xml

Question: Which of the following statements are correct? (select all that apply)

  • Tokenizers and filters can only be chained together in a specific order.
  • Analyzers consist of tokenizers and filters.
  • StandardTokenizer delimits by whitespace and punctuation, except for periods not followed by whitespace.
  • StopFilter removes generally useless words such as “the”, “at”, “and”.
  • All of the above

Question: Which locations contain SolrJ dependencies by default? (select all that apply)

  • solr/dist
  • solr/dist/solrj-lib
  • solr/example/lib/ext
  • solr/example/dist
  • All of the above
Conclusion:

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