What this tool does
Coding MCQ is the multiple-choice check on the IT and software hub. Functions, SQL, git, and Big-O, in plain language. There are 4 items. Each item has one keyed option. The page is there so you can rehearse the distinction before an interview, not so the site can rank you against other people. Item 1 asks “What does a pure function avoid?”. The option this quiz marks correct is “Changing state outside itself”. A pure function's result depends on its inputs and it does not change outside state. The other choices are Returning a value; Taking an argument; Using numbers. Item 2 asks “In SQL, which clause filters rows before grouping?”. The option this quiz marks correct is “WHERE”. WHERE filters rows. HAVING filters groups. The other choices are ORDER BY; HAVING; LIMIT. Item 3 asks “A git commit is”. The option this quiz marks correct is “A recorded snapshot of changes”. A commit records a snapshot with a message. It does not deploy on its own. The other choices are A live deploy; A database backup; A user password. Item 4 asks “Big-O notation describes”. The option this quiz marks correct is “How work grows as input grows”. It describes growth of time or space, not a measured millisecond on one laptop. The other choices are The author's name; The salary band; A CSS unit.
How to use it
Read the prompt, pick one option, and submit the set. You do not need an account to try it. Three correct answers out of four score 75, because the score is correct divided by the number of items, times 100, rounded to the nearest whole number. A wrong pick still leaves the explanation on the item, which is the useful part. The score is not a grade from an employer and it is not sent anywhere by itself. If you want it kept, sign in as a candidate and save the attempt. The quiz does not use a model, so it runs the same way when no AI key is configured.
Worked example
Work the first item on its own before you look at the key. It asks “What does a pure function avoid?”. If you choose “Changing state outside itself”, that item is marked correct because A pure function's result depends on its inputs and it does not change outside state. Then do the rest without changing an earlier answer to chase a round number. A perfect set scores 100. One miss on a four-item quiz scores 75. Zero correct scores 0. None of those numbers is a percentile. The jobs link on this page searches HiringBuddy for published roles matching “software”. An empty list means nothing published matched. It is not a comment on the wider market. A signed-in candidate can save the attempt on their profile. Saving is not an application, and it does not show the attempt to an employer. Employers see people who apply to their own jobs.
Questions
- How many questions are on the Coding MCQ?
- This page has 4 items. The score uses that count as the denominator.
- Does a high score go to an employer?
- No. Saving an attempt stores it on your candidate profile. An employer sees applicants to their own jobs, not this quiz.
- What does the score actually measure?
- It measures how many keyed options you matched. It does not measure speed, and it does not compare you with anyone else.
- Can I retake it?
- Yes. The items stay the same, so a retake checks whether the explanation stuck. It is still practice.