Q. Which of the following are true?
(i) A programming language option does not permit global variables of any king and has no nesting of procedures/functions, but permits recursion can be implemented with static storage allocation

(ii) Multi-level access link (or display) arrangement is needed to arrange activation records-only if the programming language being implemented has nesting of procedures/function

(iii) Recursion in programming languages cannot be implemented with dynamic storage allocation

(iv) Nesting of procedures/functions and recursion require a dynamic heap allocation scheme and cannot be implemented with a stack-based allocation scheme for activation records

(v) Languages which permit a function to return a function as its result cannot be implemented with a stack-based storage allocation scheme for activation records

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Q. An LALR(1) parser for a grammar can have shift-reduce (S-R) conflicts if and only if

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Q. Which of the following statements are TRUE ?
I There exist parsing algorithms for some programming languages hose complex are less than θ(n 3 )

II A programming language which allows recursion can be implemented with static storage allocation

III No L-attributed definition can be evaluated in the framework of bottom-up parsing

IV Code improving transformations can be performed at both source language and intermediate code level

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Q. What data structure in a complier is used for managing information about variables and their attributes?

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Q. Which languages necessarily need heap allocation in the runtime environment?

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Q. Given the language L-{ab, aa, baa}, which of the following strings are in LG?
1) abaabaaabaa

2) aaaabaaaa

3) baaaaabaaaab

4) baaaaabaa

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Q. A simple two-pass assembler does which of the following in the first pass

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Q. The lexical analyzer takes _________as input and produces a stream of _______as output.

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Q. Task of the lexical analysis

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Q. The output of lexical analyzer is a

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Q. In a two pass assembler, adding literals to literal table and address resolution of local symbols are done using

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Q. In Two pass assembler the object code generation is done during the

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Q. Which of the following type of software should be used if you need to create, edit and print document?

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Q. Output file of the Lex is _________ is the input file is Sam.

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Q. Yacc is available as a command on the

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Q. oading process can be divided into two programs. The first is binder the other is

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Q. In Lex, a class is complemented by first placing

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Q. Which of the following is not a feature of compiler?

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Q. Predictive parsers can be

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Q. An example of intermediate language is

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