Compilers

Syntax Analyser

Question 1
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 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 phase of the compiler is Syntax Analysis?
First
Second
Third
None of the mentioned
Explanation:
It is Second Phase Of Compiler after Lexical Analyzer.
Question 5
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 6
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 7
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 8
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 9
Marks : +2 | -2
Pass Ratio : 100%
In Short Syntax Analysis Generates Parse Tree.
True
False
Explanation:
Short Syntax Analysis generates a parse tree.
Question 10
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.