Compilers

Syntax Analyser

Question 1
Marks : +2 | -2
Pass Ratio : 100%
In Short Syntax Analysis Generates Parse Tree.
True
False
Explanation:
Short Syntax Analysis generates a parse tree.
Question 2
Marks : +2 | -2
Pass Ratio : 50%
The fourth Generation computer was made up of ______________
Transistor
Vacuum tubes
Chips
Microprocessor chips
Explanation:
It is the only way to increase its throughput.
Question 3
Marks : +2 | -2
Pass Ratio : 100%
Select a Machine Independent phase of the compiler.
Syntax Analysis
Intermediate Code generation
Lexical Analysis
All of the mentioned
Explanation:
All of them work independent of a machine.
Question 4
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.
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 : 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 7
Marks : +2 | -2
Pass Ratio : 100%
Syntax Analyser takes Groups Tokens of source Program into Grammatical Production.
True
False
Explanation:
It Groups Tokens of source Program into Grammatical Production.
Question 8
Marks : +2 | -2
Pass Ratio : 100%
Syntax Analyser is also known as ___________
Hierarchical Analysis
Hierarchical Parsing
None of the mentioned
Hierarchical Analysis & Parsing
Explanation:
It is also called as Hierarchical Analysis or Parsing.
Question 9
Marks : +2 | -2
Pass Ratio : 100%
Output file of Lex is __________ the input file is Myfile.
Myfile.e
Myfile.yy.c
Myfile.lex
Myfile.obj
Explanation:
This Produce the filr “myfile.yy.c” which we can then compile with g++.
Question 10
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.