Compilers Questions and Answers – Bottom-Up Parsing-2

This set of Compilers Multiple Choice Questions & Answers focuses on “Bottom – Up Parsing – 2”.

1. Which of the following is the fastest logic?
a) TTL
b) ECL
c) CMOS
d) LSI
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2. A bottom up parser generates __________
a) Right most derivation
b) Rightmost derivation in reverse
c) Leftmost derivation
d) Leftmost derivation in reverse
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3. A grammar that produces more than one parse tree for some sentence is called __________
a) Ambiguous
b) Unambiguous
c) Regular
d) None of the mentioned
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4. An optimizer Compiler __________
a) Is optimized to occupy less space
b) Is optimized to occupy less space & Optimize the code
c) Optimize the code
d) None of the mentioned
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5. The linker __________
a) Is similar to interpreter
b) Uses source code as its input
c) Is required to create a load module
d) None of the mentioned
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6. A latch is constructed using which two cross coupled?
a) AND OR gates
b) AND gates
c) NAND and NOR gates
d) NAND gates
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7. Pee Hole optimization __________
a) Loop Optimization
b) Local Optimization
c) Constant folding
d) Data Flow analysis
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8. The optimization which avoids test at every iteration is?
a) Loop unrolling
b) Loop jamming
c) Constant folding
d) None of the mentioned
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9. Scissoring enables __________
a) A part of data to be displayed
b) Entire data to be displayed
c) None of the mentioned
d) No data to be displayed
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10. Shift reduce parsers are __________
a) Top down Parser
b) Bottom Up parser
c) May be top down or bottom up
d) None of the mentioned
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Sanfoundry Global Education & Learning Series – Compilers.

To practice all areas of Compilers, here is complete set of 1000+ Multiple Choice Questions and Answers.

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