Compilers Questions and Answers – Handle of Right sentinel Grammar – 2

This set of Compilers online test focuses on “Handle of Right Sentinel Grammar – 2”.

1. Input to code generator is __________
a) Source code
b) Intermediate code
c) Target code
d) All of the mentioned
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2. A synthesized attribute is an attribute whose value at a parse tree node depends on __________
a) Attributes at the siblings only
b) Attributes at parent node only
c) Attributes at children nodes only
d) None of the mentioned
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3. In a bottom up evaluation of a syntax direction definition, inherited attributes can __________
a) Always be evaluated
b) Be evaluated only if the definition is L –attributed
c) Evaluation only done if the definition has synthesized attributes
d) None of the mentioned
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4. The graph that shows basic blocks and their successor relationship is called __________
a) DAG
b) Flow Chart
c) Control Graph
d) Hamilton graph
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5. _________ or scanning is the process where the stream of characters making up the source program is read from left to right and grouped into tokens.
a) Lexical Analysis
b) Diversion
c) Modelling
d) None of the mentioned
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6. _____________ is a graph representation of a derivation.
a) The parse tree
b) Oct tree
c) Binary tree
d) None of the mentioned
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7. Which of the following symbols table implementation is based on the property of locality of reference?
a) Hash Table
b) Search tree
c) Self organizing list
d) Linear list
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8. Assume that the SLR parser for a grammar G has n1 states and the LALR parser for G has n2 states. Hence which one is true?
a) N1 is necessarily less than n2
b) N1 is necessarily equal to n2
c) N1 is necessarily greater than n2
d) None of the mentioned
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Sanfoundry Global Education & Learning Series – Compilers.

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