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Compiler Design Multiple Choice Questions (MCQs) and Answers

Master Compiler Design with Practice MCQs. Explore our curated collection of Multiple Choice Questions. Ideal for placement and interview preparation, our questions range from basic to advanced, ensuring comprehensive coverage of Compiler Design concepts. Begin your placement preparation journey now!

Q121

Q121 What is the primary advantage of Just-in-Time (JIT) compilation?

A

Improved runtime performance

B

Reduced compilation time

C

Smaller executable size

D

Faster debugging

Q122

Q122 How does JIT compilation differ from ahead-of-time (AOT) compilation?

A

JIT compiles at runtime, AOT compiles before execution

B

JIT generates intermediate code, AOT generates machine code

C

JIT is slower, AOT is faster

D

There is no difference

Q123

Q123 What is the role of the JIT compiler in a managed runtime environment like the JVM?

A

To interpret bytecode

B

To translate bytecode into machine code

C

To optimize high-level source code

D

To debug runtime errors

Q124

Q124 Which technique is commonly used by JIT compilers to improve runtime performance?

A

Inlining

B

Loop unrolling

C

Dynamic profiling

D

All of the above

Q125

Q125 What is the outcome of JIT compilation for a loop-intensive program?

A

Reduced memory usage

B

Improved loop performance

C

Delayed execution

D

Compile-time errors

Q126

Q126 How does JIT handle frequently executed code blocks?

A

By caching machine code

B

By recompiling bytecode

C

By discarding bytecode

D

By increasing runtime memory

Q127

Q127 What is the common issue faced during JIT compilation for dynamic languages?

A

Syntax errors

B

Runtime type errors

C

Memory allocation failure

D

Parsing errors

Q128

Q128 How can JIT-induced performance bottlenecks be resolved?

A

By disabling JIT optimizations

B

By improving garbage collection

C

By reducing memory usage

D

By optimizing hotspot code

Q129

Q129 What is the primary benefit of parallel compilation?

A

Reduced memory usage

B

Faster compilation time

C

Improved runtime performance

D

Simpler debugging

Q130

Q130 Which component of a distributed compilation system is responsible for task allocation?

A

Worker node

B

Master node

C

Compiler

D

Linker

Q131

Q131 What is a challenge associated with parallel compilation?

A

Optimizing machine code

B

Handling dependencies between tasks

C

Generating intermediate code

D

Ensuring lexical correctness

Q132

Q132 How does distributed compilation differ from parallel compilation?

A

Distributed compilation uses multiple computers, parallel compilation uses multiple cores

B

Distributed compilation is faster than parallel compilation

C

Parallel compilation handles larger codebases

D

There is no difference

Q133

Q133 What is the impact of parallelizing the lexical analysis phase?

A

Reduced errors

B

Increased complexity

C

Faster processing of tokens

D

No significant impact

Q134

Q134 How does distributed compilation handle large projects with multiple files?

A

By compiling all files on a single node

B

By distributing files across worker nodes

C

By delaying compilation

D

By optimizing object files

Q135

Q135 What debugging issue is commonly faced in parallel compilation?

A

Runtime errors

B

Deadlocks

C

Semantic errors

D

Code redundancy

Q136

Q136 What is a common challenge in debugging distributed compilation?

A

Identifying syntax errors

B

Tracking errors across multiple nodes

C

Optimizing machine code

D

Resolving type mismatches

Q137

Q137 What is the primary focus of advanced compiler optimization techniques?

A

Improving runtime performance

B

Reducing code size

C

Enhancing portability

D

All of the above

Q138

Q138 What is the role of polyhedral models in compiler optimization?

A

To analyze control flow

B

To optimize loop nests

C

To improve semantic analysis

D

To enhance lexical analysis

Q139

Q139 Which of the following is a characteristic of Just-in-Time (JIT) compilation in advanced topics?

A

Static optimization

B

Runtime optimization

C

Compile-time analysis

D

Intermediate code generation

Q140

Q140 How can data flow analysis improve variable usage in a program?

A

By identifying unused variables

B

By enhancing code readability

C

By optimizing memory allocation

D

By improving code size

Q141

Q141 What is the purpose of interprocedural analysis in advanced compilers?

A

To analyze a single function

B

To optimize within one module

C

To analyze across multiple functions

D

To improve lexical tokens

Q142

Q142 What type of error is most challenging to debug in parallelized code?

A

Syntax error

B

Data race condition

C

Lexical error

D

Semantic error

Q143

Q143 How do advanced compilers detect and correct memory leaks?

A

By analyzing heap usage

B

By checking for unused variables

C

By optimizing stack memory

D

By generating machine code

Q144

Q144 What is the main focus of compiler case studies?

A

Exploring theoretical aspects

B

Analyzing practical implementations

C

Improving runtime performance

D

Developing new languages

Q145

Q145 What challenge did the LLVM compiler address compared to traditional compilers?

A

Lack of open-source availability

B

Inability to support cross-platform code

C

Static compilation limitations

D

Poor optimization techniques

Q146

Q146 What unique feature does the GCC compiler provide to support multiple languages?

A

A unified intermediate representation

B

Dynamic linking

C

Multi-threaded compilation

D

Real-time debugging

Q147

Q147 How does the Java compiler handle platform independence?

A

By generating assembly code

B

By producing bytecode

C

By supporting native compilation

D

By linking libraries dynamically

Q148

Q148 What optimization technique is used in modern compilers to improve memory access patterns?

A

Loop fusion

B

Cache optimization

C

Register allocation

D

Constant folding

Q149

Q149 What debugging tool is commonly integrated with compilers for runtime analysis?

A

GDB

B

Valgrind

C

LLVM analyzer

D

Lex

Q150

Q150 How do compilers detect inconsistencies in interdependent modules?

A

By static linking

B

By cross-module analysis

C

By runtime execution

D

By optimizing intermediate code

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