Compiler design true false questions

  • Is type checking done before parsing True or false?

    Type checking performs at the semantic analysis phase, and parsing performs at the syntax analysis phase.
    Since the Syntax analysis phase comes before semantic analysis, therefore Type Checking is always done after parsing..

  • What does a bottom up parser generate?

    Bottom-up parser:- A Bottom-up parser generates the Rightmost derivation in reverse.
    This corresponds to starting at the leaves of the parse tree also known as shift-reduce parsing.
    The strings that are reduced during the reverse of a rightmost derivation are called the handles..

  • What is FSA in compiler design?

    Finite automata is a state machine that takes a string of symbols as input and changes its state accordingly.
    Finite automata is a recognizer for regular expressions.
    When a regular expression string is fed into finite automata, it changes its state for each literal..

  • Which concept of FSA is used in the compiler?

    Lexical analysis is the concept of Finite State Automaton (FSA) used in the compiler.
    A compiler is a software program that transforms source code written in a high-level programming language into a lower-level representation, typically machine code, that can be executed by a computer..

  • Which concept of grammar is used in the compiler?

    6.
    Which concept of grammar is used in the compiler? Explanation: As the lexical analysis of a grammar takes place in phases hence it is synonymous to parser..

  • Compiler design is a field of computer science that focuses on the development of software tools known as compilers.
    A compiler is a program that translates source code written in a high-level programming language into a low-level language (such as machine code) that can be executed by a computer.
  • Parsing, syntax analysis, or syntactic analysis is the process of analyzing a string of symbols, either in natural language, computer languages or data structures, conforming to the rules of a formal grammar.
  • Syntax Analyzers
    A syntax analyzer or parser takes the input from a lexical analyzer in the form of token streams.
    The parser analyzes the source code (token stream) against the production rules to detect any errors in the code.
    The output of this phase is a parse tree.
Jun 8, 2018Compiler Design | Mock Test The correct answer is 'False'. The correct answer is 'True'. Shift reduce parsing is a type of Top down design. The 
Jun 8, 2018The correct answer is 'True'. Shift reduce parsing is a type of Top down design. The correct answer is 'False'.

What is a pseudo assembler?

Pseudo instructions are given to the assembler.
Assemblers are software programs that convert assembly language code into machine language code that can be executed by the CPU.
The assembler is responsible for interpreting pseudo instructions and generating the appropriate machine language code.

What is compiler design MCQ?

Compiler Design MCQ on Code Optimisation The section contains Compiler Design multiple choice questions and answers on code optimization, elimination of induction variables, eliminating global common subexpressions, loop optimization, unrolling and jamming. 11.
Compiler Design Multiple Choice Questions on Code Generation .

Performance-degrading usage pattern

In computer science, false sharing is a performance-degrading usage pattern that can arise in systems with distributed, coherent caches at the size of the smallest resource block managed by the caching mechanism.
When a system participant attempts to periodically access data that is not being altered by another party, but that data shares a cache block with data that is being altered, the caching protocol may force the first participant to reload the whole cache block despite a lack of logical necessity.
The caching system is unaware of activity within this block and forces the first participant to bear the caching system overhead required by true shared access of a resource.

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