Elasticsearch 8.15 practice questions: 10 free samples from the Elasticsearch mock exam

10 questions in the style of the Elastic Certified Engineer exam, with their answer options. They are 10 of the 48 in the pool the mock draws from; answers and explanations come back when you sit it, and every question is marked against its domain so you can see where you stand.

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  1. 1. What is a document in Elasticsearch? Documents and indices

    1. AA row in a table with a fixed set of columns
    2. BA JSON object stored under an id inside an index
    3. CA file on disk that the cluster serves verbatim
    4. DA query saved for reuse

  2. 2. Elasticsearch can join two indices at query time the way SQL joins two tables. Documents and indices

    1. 3. Why is _bulk faster than the same number of individual index requests? Documents and indices

      1. AIt disables replication for the duration of the request
      2. BIt skips the mapping check for every document after the first
      3. CIt amortises request overhead and lets the cluster batch the work
      4. DIt writes straight to disk without going through the translog

    2. 4. You need to group results by a status field with values like "in progress". Which type do you use? Mappings and field types

      1. Aeither works the same
      2. Btext
      3. Ctext with fielddata enabled
      4. Dkeyword

    3. 5. A field can be indexed as both text and keyword at the same time. Mappings and field types

      1. 6. You can change an existing field from text to keyword on a live index. Mappings and field types

        1. 7. How many tokenizers does an analyzer have? Analysis

          1. AAs many as you configure
          2. BOne per field
          3. CNone — tokenizing is optional
          4. DExactly one

        2. 8. Analysis runs on the search query as well as on the indexed text. Analysis

          1. 9. Searching a keyword field for "bali" will match a document containing "Bali". Analysis

            1. 10. A term query for "Bali Kids" against a text field returns nothing. Why? Query DSL

              1. Aterm queries require an exact id, not a value
              2. Bterm queries only work on numbers and dates
              3. CThe stored tokens are "bali" and "kids"; the unanalyzed query looks for the whole string as one term
              4. DThe field needs fielddata enabled

            Check your answers

            The mock marks every answer on submit, explains it and breaks the result down by domain. It draws its questions in the published domain weights, and passes at 70% — Elastic publishes no pass mark and the real exam is hands-on. 70% is a convention of this site, not an official figure.

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            Exam facts are taken from the official page: www.elastic.co. Questions here are written for practice and are not from the real exam.