ISRO Exam CS 2017 Daily Quiz -12 (Compiler Design)

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Question 1

The attributes of three arithmetic operators in some programming language are given below.

The value of the expression in this language is ___________.

• A3
• B6
• C9
• D12

Question 2

Which of the following statements about parser is/are CORRECT?
I. Canonical LR is more powerful than SLR
II. SLR is more powerful than LALR
III. SLR is more powerful than Canonical LR

• AI only
• BII only
• CIII only
• DII and III only

Question 3

A simple two pass assembler does which of the following in the first pass?

• AChecks to see if the instructions are legal in the current assembly mode
• BIt allocates space for the literals.
• CIt builds the symbol table for the symbols and their values.
• DAll of these

Question 4

Substitution of values for names (whose values are constants) is done in

• ALocal optimization
• BLoop optimization
• CConstant folding
• DStrength reduction

Question 5

A top down parser generates

• ARightmost Derivation
• BRightmost derivation in reverse
• CLeftmost derivation
• DLeftmost derivation in reverse

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