Compiler Construction MCQs for job

By: Prof. Dr. Fazal Rehman | Last updated: April 30, 2025

1. : The binary of the decimal number 368 is equal to _____.
(A) 10111000
(B) 111100101
(C) 110110000
(D) 110110010

2. : A lexical analyzer produces _____.
(A) Tokens
(B) Parser
(C) Regular expression
(D) Both A and B

3. : Compiler writers focus on which of the following?
(A) Data dependence
(B) Fast performance
(C) Correctness
(D) Both A and B

4. : The running time of a program is based on _____.
(A) Addressing mode
(B) Order of computations
(C) Both A and B
(D) All of these

5. : In the FSA (Finite State Automaton) technique, _____ is used in the compiler.
(A) Parser
(B) Lexical analysis
(C) Token
(D) Both A and C

6. : _____ is used to assign local variables.
(A) Queue
(B) Token
(C) Registers
(D) Stack

7. : A latch is built using _______ gates.
(A) NAND and NOR
(B) AND
(C) AND, OR
(D) Both A and B

8. : ________ are also called lexemes.
(A) Identifiers
(B) Keywords
(C) Both A and B
(D) None of these

9. : A compiler indicates which of the following errors?
(A) Logical errors
(B) Syntax errors
(C) Grammatical errors
(D) Both A and B

10. : One of the best parsers is ______.
(A) Canonical LR
(B) SLR
(C) Both A and B
(D) None of these