kdb+ Interview Questions Quiz

kdb+ Questions Quiz

The below questions are meant as a small challenge to see if you are a kdb God or a mere mortal.

Top 10 Scoreboard

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2026-05-13 12:40:13Eugene Kallivrousis10
2026-05-02 06:27:39Testing10
2026-04-21 02:36:26abcdefg10
2026-03-16 10:32:23K10
2026-03-12 21:28:32aaa bbb10
2026-03-02 14:40:12avesh badal10
2025-09-10 17:24:56pgl gpl10
2025-09-03 08:52:30xyz10
2025-08-20 12:46:07Hemant Kumar Verma10
2025-08-18 05:54:48Shatrughan Kumar10

Quiz Questions

  1. Which function can be used to enumerate the symbol columns of a table?
    .Q.fk
    .Q.pf
    .Q.en
    .Q.P

  2. Attributes in kdb allow describing or applying data structures to lists to allow queries to run faster.
    Which of these is NOT an attribute in kdb?
    s
    u
    g
    r

  3. Which command can be used to set the size of the terminal console?
    \c
    \C
    \p
    \P

  4. Which function allows renaming columns?
    xren
    xcol
    as
    xcols

  5. Which command line option allows kdb to run in a read-only mode?
    -r
    -b
    -u
    -z

  6. Which function can be used to sort a list (in numerically increasing order)?


  7. Which event handler can be overridden to control access via a username and password


  8. Which function is used to search and replace text within a string?


  9. Which kdb function can be used to set an environment variable?


  10. Which function can be used to return the command line arguments that launched kdb
    .z.X
    .Q.opt
    .z.c
    None of the above.

We are only allowing one entry per person. Anyone found with multiple entries will be disqualified and deemed ineligible.

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