How to use the Compiler Design MCQ Quiz
- 1. Choose the length10 random Compiler design questions, or all 25. Untick shuffle for a fixed order.
- 2. AnswerPick an option and see straight away whether it's right, with a one-line reason.
- 3. See your scoreFinish to get your score and a review of every question with the correct answer.
What the quiz covers
Compiler design is a core B.Tech CSE subject and a regular GATE topic, and this quiz covers the questions university exams and GATE ask most. The 25 questions are grouped into 11 areas, shown above each question: Phases, Tools, Lexical analysis, Grammars, Parsing, SDT, Intermediate code, Optimisation, Code generation, Runtime, Basics.
A sample question explained
"Why remove left recursion?" The answer is Top-down parsers like recursive descent would loop forever. A → Aα | β becomes A → βA', A' → αA' | ε. Left factoring is a separate fix for common prefixes; don't confuse the two.
More questions you'll meet
A few of the other Compiler design questions in the bank:
- Type checking happens in
- Which data structure stores identifiers and their attributes?
- Which LR parser is the most powerful?
- FIRST(A) is
- Three-address code has at most
- Replacing x * 2 with x + x or x << 1 is
- Removing code whose result is never used is
Study tips
- Work out FIRST and FOLLOW sets for two small grammars by hand.
- Learn the power order of parsers: LR(0) < SLR(1) < LALR(1) < canonical LR(1).
- Aim for at least 20 out of 25 on two separate attempts before you treat Compiler design as revised; one lucky score can hide gaps.
Questions and options are shuffled on each attempt, so a retake is a fresh test. The Compiler design questions were written by Uncodemy for practice; they aren't copied from any exam or company test.
Frequently asked questions
Is this enough for GATE?
It's revision. Also solve previous GATE questions on parsing and SDT.
Which textbook does it follow?
Standard topics from the 'Dragon book' (Aho, Lam, Sethi and Ullman).
Is the Compiler design MCQ quiz free?
Yes. Every question in the Compiler design MCQ quiz can be answered without signing up. When you finish your first round, we ask once for your name and WhatsApp number to show your score; after that the Compiler design MCQ quiz and every other Uncodemy tool open straight away.