
CD Quiz Batch B2 1a and 1 b programs
Quiz
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Computers
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University
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Practice Problem
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Medium
Sneha M
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8 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Yacc implements which parser?
LALR
CLR
SLR
LR(0)
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which part produces the target code from the intermediate representation of source code?
Lexical Analysis
Synthesis
Analysis
None
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which Phase of the compiler identifies the error(if present) in the following C code:
a+b=c;
Lexical analysis
Syntax analysis
Semantic analysis
There are no errors in the code
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Calculate the FIRST set for the following grammar
S → aBDh | C
B → cC
C → bC / ∈
D → EF
E → g / ∈
F → f
First(S) = { a,b,∈} First(B) = { c } First(C) = { b , ∈ } First(D) = { g , f } First(E) = { g , ∈ } First(F) = { f}
First(S) = { a,b} First(B) = { c } First(C) = { b , ∈ } First(D) = { g , f, ∈} First(E) = { g , ∈ } First(F) = { f}
First(S) = { a,b} First(B) = { c } First(C) = { b , ∈ } First(D) = { g , f } First(E) = { g} First(F) = { f }
None of the above
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Compute Follow set for the following grammar for constructing the predictive parsing table:
S → AB
A → aB / AdC
B → b | ∈
C → g
Fo(S) = { $ }
Fo(A) = { $,d,b}
Fo(B) = { $,d,b}
Fo(C) = { $,d,b }
Fo(S) = { $ }
Fo(A) = { d,b,∈}
Fo(B) = { b,d,b}
Fo(C) = { d,b,∈ }
Fo(S) = { $ }
Fo(A) = { ∈,d,b}
Fo(B) = { $,d,b}
Fo(C) = { $,d,b }
First(S) ={ a, b} First(A) = { a } First(A’) = { d , ∈ } First(B) = { b ,∈} First(C) = { g }
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the purpose of a predictive parsing table in compiler design?
To store the parsing rules for each non-terminal symbol
To generate the intermediate code from the source code
To optimize the lexical analysis phase
To execute the target code directly
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Explain the role of a syntax analyzer in the compilation process.
To convert the source code into tokens
To check the syntax of the source code based on the grammar rules
To generate the final executable code
To perform optimization on the intermediate code
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the significance of the LR(0) parser in compiler construction?
It is used to perform lexical analysis
It is a type of shift-reduce parser
It is capable of handling left-recursive grammars
It is used to generate the abstract syntax tree
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