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Lecturer Computer Science Test 18 Online Preparation MCQs

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There will be 25 multiple choice question in the test.
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Test Instructions:-
Test Name	Lecturer Computer Science
Subject	Computer Science Test 18
Test Type	MCQs
Total Questions	25
Total Time	20 Minutes
Total Marks	100

You have 20 minutes to pass to the quiz.

PPSC Lecturer of Computer Science Practice Test 18

1 / 25

A function that returns no values to the program that calls it is:

type void

D. type barren

not allowed in C++

type empty

2 / 25

If container classes are carefully constructed, then these tools are available to work with structures that are not:

programmer-defined

type-specific

valid without container classes

public

3 / 25

Which type of statement does not occur in computer programs?

selection

denial

loop

sequence

4 / 25

When a child class function is called, the compiler looks first for a matching function name in the:

immediate ancestor class

descendant class

base class

class of the object using the function name

5 / 25

To enter a comment in a C++ program, you begin the comment with:

6 / 25

The step-by-step instructions that solve a problem are called:

a plan

an algorithm

a sequential structure

a list

7 / 25

You define a structure type globally because:

you save many lines of code by not rewriting an identical structure definition in each function that uses it

All of the above

it is required in C++

you will never change its definition

8 / 25

What does C++ append to the end of a string literal constant?

a number sign (#)

an asterisk (*)

a space

a null character

9 / 25

When you pass a variable _____, C++ passes only the contents of the variable to the receiving function:

by reference

Globally

by value

Locally

10 / 25

The type to be used in an instantiation of a class template follows:

the generic class name

the template definition

the keyword template

the keyword class

11 / 25

The newline character is always included between:

pair of parentheses

control string

pair of curly braces

None of the above

12 / 25

Paying attention to the important properties while ignoring inessential details is known as:

abstraction

selectiveness

Polymorphism

Summarizing

13 / 25

The best form of coupling is:

Free

Tight

loose

complete

14 / 25

Which of the following statements allows the user to enter data at the keyboard?

cout >> currentPay;

cin << currentPay;

cout << currentPay;

None of the above

cin >> currentPay;

15 / 25

If you create an instantiation of a class template with an int, and then create a second instantiation with a double, then:

you cannot perform this operation in C++

once a function is used as one type, it becomes unavailable for use with the other type

there is no difference in the procedure to call a member function

you must precede each function call with the word int or double

16 / 25

The generic type in a template function:

cannot be T for functions you create, but may be for C++'s built-in functions

cannot be T

can be T

must be T

17 / 25

The #ifndef directive tests to see whether:

a class has no variable definitions

any objects of the class have been instantiated

a class has been defined

a variable has been given a value

18 / 25

Which of the following statements is false?

Functions allow programmers to use existing code to perform common tasks

Functions can be called, or invoked, only once in a program

Functions allow programmers to break large and complex problems into small and manageable tasks

Programmer-defined functions can be either value-returning or void

A function is a block of code that performs a specific task

19 / 25

An array name is a:

memory address

Subscript

formal parameter

Prototype

20 / 25

A function that is called automatically each time an object is destroyed is a:

destructor

constructor

destroyer

terminator

21 / 25

Which of the following is(are) invalid string constant(s)?

None of the above

"i like e"

'7.15 pm'

"7.3el2"

"1234el2"

22 / 25

Overloaded functions are required to:

None of the above

have the same number of parameters

have the same return type

perform the same basic functions

23 / 25

keyword used to define a structure is:

stru

struct

stt

structure

24 / 25

Header files often have the file extension:

.HE

.HEA

.HEAD

25 / 25

To be called object-oriented, a programming language must allow:

functions that return only a single value

#include files

inheritance

All of the above

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