Compilers

Syntax Analyser

Question 1
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 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 : 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 5
Marks : +2 | -2
Pass Ratio : 100%
Which of these features of assembler are Machine-Dependent?
Instruction formats
Addressing modes
Program relocation
All of the mentioned
Explanation:
All of these options are features of assembler which are machine dependent.
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%
In Short Syntax Analysis Generates Parse Tree.
True
False
Explanation:
Short Syntax Analysis generates a parse tree.
Question 8
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 9
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 10
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.