GATE CSE 2003 | GATE CSE Year Wise Previous Years Questions

GATE CSE 2003

MCQ (Single Correct Answer)

-0.6

Consider the syntax directed definition shown below.

GATE CSE 2003 Compiler Design - Code Generation and Optimization Question 19 English

Here, gen is a function that generates the output code, and newtemp is a function that returns the name of a new temporary variable on every call. Assume that ti's are the temporary variable names generated by newtemp. For the statement 'X : = Y + Z', the 3-address code sequence generated by this definition is

$$X = Y + Z$$

$${t_1} = Y + Z;X = {t_1}$$

$${t_1} = Y;{t_2} = {t_1} + Z;X = {t_2}$$

$${t_1} = Y;{t_2} = Z;\,{t_3} = {t_1} + {t_2};X = {t_3}$$

GATE CSE 2003

MCQ (Single Correct Answer)

-0.3

Which of the following statements is FALSE?

In statically typed languages, each variable in a program has a fixed type

In un-typed languages, values do not have any types

In dynamically typed languages, variables have no types

In all statically typed languages, each variable in a program is associated with values of only a single type during the execution of the program

GATE CSE 2003

MCQ (Single Correct Answer)

-0.3

Which of the following suffices to convert an arbitrary CFG to an LL(1) grammar?

Removing left recursion alone

Factoring the grammar alone

Removing left recursion and factoring the grammar

None of the above

GATE CSE 2003

MCQ (Single Correct Answer)

-0.6

The subnet mask for a particular network is 255.255.31.0. Which of the following pairs of IP addresses could belong to this network?

172.57.88.62 and 172.56.87.233

10.35.28.2 and 10.35.29.4

191.203.31.87 and 191.234.31.88

128.8.129.43 and 128.8.161.55

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