Answered: Abstract data types includes…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

Abstract data types includes ___________________.

a)Both “data” and “functions”

b)constructors

c)functions

d)data

e)“data” , “functions” and “constructors”

Which one of the following variables is history sensitive?

a)implicit heap dynamic

b)explicit heap dynamic

c)static

d)stack dynamic

e)non static

Sentence in a derivation process consists of

a)only terminals

b)None of these

c)only Non-terminals

d)keywords

e)terminals and non-terminals

Most of the AI applications developed before 90s were written in _______________.

a)C

b)LISP

c)Python

d)Java

e)Prolog

Which feature in C# allows to access the private members of a class?

a)property

b)access specifier

c)public

d)attribute

e)behavior

Explicit Heap dynamic variables allows ________________________.

a)Both “Explicit deallocation” and “Implicit deallocation”

b)Both “Explicit deallocation” and “Implicit Memory Allocation”

c)Implicit deallocation

d)Explicit deallocation

e)Implicit Memory Allocation

Which of the following method is preferred, if we want to pass large amount of data to a subprogram?

a)Pass by Value Result

b)Pass by Reference

c)Pass by Result

d)Pass by Value

e)Pass by Copy

A non-static local variable is bound to a memory cell at ___________________.

a)implementation time

b)compile time

c)operating time

d)runtime

e)load time

Which of the following languages allows creation of implicit heap dynamic variables?

a)Java

b)All of these

c)Cobol

d)Perl

e)C

Semantic

Function

Syntax

Code

Statement

Which of the grammar will be unambiguous?

1 point

a)grammar is right recursive

b)grammar is left recursive

c)grammar has more than one rightmost derivation for a single input sentence

d)grammar has more than one leftmost derivation for a single input sentence

e)grammar has only a unique parse tree for a single sentence

For Recursion process to be implemented, we need __________________ variables.

a)non static local

b)array

c)actual

d)local

e)static

In Implicit Heap dynamic variables, memory may be allocated and deallocated _____________________.

a)only once

b)fixed number of times

c)many times

d)Both “only once” and “fixed number of times”

e)None of these

In the given statement the value of c is bound at _____________________. c = c + 1

a)load time

b)operating time

c)implementation time

d)compile time

e)execution time

In ________________ language, an algorithm is specified in great detail, and the specific order of execution of the instructions or statements must be included.

a)Assembly

b)Object oriented

c)None of these

d)Functional

e)Logic

If a variable is used in a program before its declaration, then which phase will report error?

a)Interpreter

b)Semantic Analysis

c)Lexical Analysis

d)Code optimizer

e)Syntax Analysis

In parameter pass by reference method, ________________ of actual parameters is passed to the formal parameters of a subprogram.

a)pointer

b)value

c)result

c)address

d)None of these

Which of the following is machine dependent phase(s) of the compiler?

a)Both “Code Optimizer” and “Code Generation”

b)Both “Intermediate Code Generation” and “Code Optimizer”

c)Code Optimizer

d)Intermediate Code Generation

e)Code Generation

Which of the following is a token?

a)word

b)value

c)address

d)keyword

e)lexeme

A derivation is a repeated application of rules, starting with the start symbol and ending with _____________________.

a)final symbol

b)Expression

c)grammar symbols

d)Non-terminals

e)terminal symbols

When a subprogram is called, then a _________________ is created on the stack.

a)All of these

b)Active Record

c)Runtime stack

d)record

e)Activation record

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