Compilers

Syntax Analyser

Question 1
Marks : +2 | -2
Pass Ratio : 100%
A system program that combines the separately compiled modules of a program into a form suitable for execution?
Assembler
Compiler
Linking Loader
Interpreter
Explanation:
A loader which combines the functions of a relocating loader with the ability to combine a number of program segments that have been independently compiled.
Question 2
Marks : +2 | -2
Pass Ratio : 100%
From where it takes its input from?
Lexical analyser
Syntactic Analyser
Semantic Analyser
None of the mentioned
Explanation:
A syntax analyzer or parser takes the input from a lexical analyzer in the form of token streams.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
In Short Syntax Analysis Generates Parse Tree.
True
False
Explanation:
Short Syntax Analysis generates a parse tree.
Question 4
Marks : +2 | -2
Pass Ratio : 50%
By whom is the symbol table created?
Compiler
Interpreter
Assembler
None of the mentioned
Explanation:
Symbol table is created by the compiler which contains the list of lexemes or tokens.
Question 5
Marks : +2 | -2
Pass Ratio : 100%
Suppose One of the Operand is String and other is Integer then it does not throw error as it only checks whether there are two operands associated with ‘+’ or not.
True
False
Explanation:
Syntax analyser does not check the type of the operand.
Question 6
Marks : +2 | -2
Pass Ratio : 50%
Semantic Analyser is used for?
Generating Object code
Maintaining symbol table
Generating Object code & Maintaining symbol table
None of the mentioned
Explanation:
Maintaining the Symbol Table for each block.
Question 7
Marks : +2 | -2
Pass Ratio : 100%
What does a Syntactic Analyser do?
Maintain Symbol Table
Collect type of information
Create parse tree
None of the mentioned
Explanation:
Syntax analyzer will just create a parse tree. Semantic Analyzer checks the meaning of the string parsed.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Parsers are expected to parse the whole code.
True
False
Explanation:
Parsers are expected to parse the whole code even if some errors exist in the program.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Which of these is not true about the Symbol Table?
All the labels of the instructions are symbols
Table has entry for symbol name address value
Perform the processing of the assembler directives
Created during pass 1
Explanation:
The Symbol table does not ever perform the processing of the assembler derivative.
Question 10
Marks : +2 | -2
Pass Ratio : 50%
Which of the following system software resides in the main memory?
Text Editor
Assembler
Linker
Loader
Explanation:
Loader is used to loading programs.