Computer Software Exam

When is std::bad_alloc exception thrown?

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When new operator cannot allocate memory
When alloc function fails
When type requested for new operation is considered bad, thisexception is thrown
When delete operator cannot delete the allocated (corrupted) object

Which one of the following is not a valid reserved keyword in C++

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Explicit
Public
Implicit
Private

Which of the following functions below can be used Allocate space for array in memory?

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Calloc()
Malloc()
Realloc()
Both a and b

Which of the following port is used to connect DB-25 pin modems or scanners?

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Serial Ports
Parallel Port
PS/2 Port
USB Port

STL is based on which of the following programming paradigms?

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Structured Programming
Object Oriented Programming (OOP)
Functional Programming
Aspect Oriented Programming (AOP)

What is the suitable output device for CAE, CAD and CAM?

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Dot Matrix Printers
Laser Printers
Plotters
Projectors

Which of the following is true about const member functions?

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Const members can be invoked on both const as well as nonconst objects
Const members can be invoked only on const objects and not on nonconst objects
Nonconst members can be invoked on const objects as well as nonconst objects
None of the above

Which of the STL containers store the elements contiguously (in adjacent memory locations)?

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Std::vector
Std::list
Std::map
Std::set

Originally ‘C’ was developed as:

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System programming language
General purpose language
Data processing language
None of the above

Which looping process checks the test condition at the end of the loop?

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For
While
Do-while
No looping process checks the test condition at the end

Under which of the following circumstances, synchronization takes place?

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When the file is closed
When the buffer is empty
Explicitly, with manipulators
Both a and c

What does STL stand for?

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Simple Template Library
Standard Template Library
Static Type Library
Single Type-based Library

Which device in microprocessor stores the data to be processed?

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ROM
RAM
Registers
ALU

Which of the following operators below allow to define the member functions of a class outside the class?

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::
?
:?
%

What’s wrong? (x = 4 && y = 5) ? (a = 5) ; (b = 6);

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The question mark should be an equal sign
The first semicolon should be a colon
There are too many variables in the statement
The conditional operator is only used with apstrings

What is shallow copy?

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A shallow copy creates a copy of the dynamically allocated objects too.
A shallow copy just copies the values of the data as they are.
A shallow copy creates a copy of the statically allocated objects too
Both b and c above

What is deep copy?

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A deep copy creates a copy of the dynamically allocated objects too.
A deep copy just copies the values of the data as they are.
A deep copy creates a copy of the statically allocated objects too
Both b and c above

Seek time is

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Time taken to retrieve a dta
Time taken by read/write head mechanism to position itself over appropriate cylinder
Time taken by appropriate sector to come under read/write
None of the above

Which of the following is a valid destructor of the class name “Country”

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Int ~Country()
Void Country()
Int ~Country(Country obj)
Void ~Country()

The time taken to move an access arm to a certain track on a disk is

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Seek Time
Head Switching Time
Search Time
Data Transfer time

The rotational delay time or latency time is also known as

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Seek Time
Head Switching Time
Search Time
Data Transfer time

Which of the following keyword supports dynamic method resolution?

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Abstract
Virtual
Dynamic
Typeid

‘Prime area’ in context of file system is defined as

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It is memory area created by operating system
It is an area into which data records are written
It is the main area of a web page
None of the above

Which of the following printer produces most noise?

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Dot Matrix Printer
Inkjet Printer
Laser Printer
None of above

A cluster of red, green and blue diodes is driven together to form a full-color pixel in a

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LCD Monitor
LED Monitor
CRT Monitor
Monochrome Monitor

Each pass through a loop is called a/an

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Enumeration
Iteration
Culmination
Pass through

Which looping process is best used when the number of iterations is known?

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For
While
Do-while
All looping processes require that the iterations be known

Which of the following members do get inherited but become private members in child class

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Public
Private
Protected
All the above

If class A is friend of class B and if class B is friend of class C, which of the following is true?

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Class C is friend of class A
Class A is friend of class C
Class A and Class C do not have any friend relationship
None of the above

Which of the following correctly describes C++ language?

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Statically typed language
Dynamically typed language
Both Statically and dynamically typed language
Type-less language

In a group of nested loops, which loop is executed the most number of times?

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The outermost loop
The innermost loop
All loops are executed the same number of times
Cannot be determined without knowing the size of the loops

What is the difference between overloaded functions and overridden functions?

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Overloading is a dynamic or run-time binding and Overriding is static or compile-time binding
Redefining a function in a friend class is called function overriding while Redefining a function in a derived class is called an overloaded function.
Overloading is a static or compile-time binding and Overriding is dynamic or run-time binding
Redefining a function in a friend class is called function overloading while Redefining a function in a derived class is called as overridden function.

Latency time is:

1 Mark(s)

Time taken by read/write head mechanism to position itself over appropriate cylinder
Time taken to transfer a dta from memory
Time taken by appropriate sector to come under read/write head
None of the above

If the class name is X, what is the type of its “this” pointer (in a nonstatic, non-const member function)?

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const X* const
X* const
X*
X&

The output of{int a = 5;int b = 10;cout << (a>b?a:b);}

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5
10
Syntax error
None of above

Which of the following is not a valid conditional inclusions in preprocessor directives

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#Ifdef
#Ifundef
#Endif
#Elif

Statement scanf(“%d”,80);

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Assign an integer to variable i
Give an error message
Print the value of i
Assign an float to variable i

In a C language ‘3’ represents

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A digit
An integer
A character
A word

The conditional compilation

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It is taken care of by the compiler
It is setting the compiler option conditionally
It is compiling a program based on a condition
None of the above

Which of the following is not a magnetic storage medium?

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Floppy Disk
Hard Disk
Digital Versatile Disks
Cassettes and Cartridges

Computer Software Exam : Question 1 of 40