Compiler design Lab Test
Compiler Design Lab Test Quiz
Test your knowledge of compiler design concepts with our interactive quiz! From parsing techniques to grammar analysis, this quiz covers key topics that every computer science student should master.
Challenge yourself and see how well you understand:
- Bottom-up and top-down parsing
- Finite state machines
- Regular grammars and sets
- Parser conflicts
A bottom up parser generates
Right most derivation
Rightmost derivation in reverse
Leftmost derivation
Leftmost derivation in reverse
In a compiler, keywords of a language are recognized during
Parsing of the program
The code generation
The lexical analysis of the program
Dataflow analysis
What is the maximum number of reduce moves that can be taken by a bottom-up parser for a grammar with no epsilon- and unit-production (i.e., of type A -> є and A -> a) to parse a string with n tokens?
N/2
N - 1
2n-1
2^n
An LALR(1) parser for a grammar G can have shift-reduce (S-R) conflicts if and only if
The SLR(1) parser for G has S-R conflicts
The LR(1) parser for G has S-R conflicts
The LR(0) parser for G has S-R conflicts
The LALR(1) parser for G has reduce-reduce conflicts
Which one of the following is a top-down parser?
Recursive descent parser
Operator precedence parser
An LR(k) parser
An LALR(k) parser
Consider the following two statements: P: Every regular grammar is LL(1) Q: Every regular set has a LR(1) grammar Which of the following is TRUE?
Both P and Q are true
P is true and Q is false
P is false and Q is true
Both P and Q are false
A canonical set of items is given below S --> L. > R Q --> R. On input symbol < the set has
a shift-reduce conflict and a reduce-reduce conflict
A shift-reduce conflict but not a reduce-reduce conflict
A reduce-reduce conflict but not a shift-reduce conflict
Neither a shift-reduce nor a reduce-reduce conflict
The grammar A → AA | (A) | ε is not suitable for predictive-parsing because the grammar is
Ambiguous
Left-recursive
Right-recursive
An operator-grammar
Consider the grammar S → (S) | a Let the number of states in SLR(1), LR(1) and LALR(1) parsers for the grammar be n1, n2 and n3 respectively. The following relationship holds good
N1 < n2 < n3
N1 = n3 < n2
N1 = n2 = n3
N1 ≥ n3 ≥ n2
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