Worksheetsc++ 1
Total questions: 50
Worksheet time: 25mins
Specify the types of operator
Logical, Bitwise, Arithmetic, Relational
Mathematical, Bitwise, Arithmetic, Relational
Assignment, Bitwise, Arithmetic, Relational
Logical, Bitwise, Assignment, Relational
Logical operators always evaluated from
Left to right
No difference
Not sure
Right to left
When an equation uses more than one type of operator then the order of precedence has to be established with the different types of operators:
Arithmetic, comparison, logical
Comparison, logical, arithmetic
Logical, arithmetic, comparison
Arithmetic, logical, comparison
Precedence for Logical Operators
NOT, AND, OR
OR, AND, NOT
OR, NOT, AND
AND, OR, NOT
What is an array?
An array is a series of elements of the same type placed in contiguous memory locations that can be individually referenced by adding an index to a unique identifier
An array is a series of elements of the different type placed in contiguous memory locations that can be individually referenced by adding an index to a unique.
An array is a series of elements of the same type placed in contiguous memory locations that can be individually referenced by multiplying an index to a unique identifier
An array is a series of elements of the same type placed in contiguous memory locations that can be
o individually referenced by adding an index to a same identifier.
When an array is partially initialized, the rest of its elements will automatically be set to zero
False
True
Nothing
All of them
The whole array can be passed to a function. However, it can't be changed by the code in that function
False
All of them
Nothing
True
What are the three steps in using a function?
Definition, prototype, invocation
Prototype, argument, signature
Definition, invocation, argument
write mpg() function prototype, that takes two type double arguments and returns a double
Double mpg(double a, double b)
Void mpg(){}
Float mpg(int a){ float b = 1; return b;}
Double mpg(int a, double b)
What is data structure?
is a group of data elements grouped together under one name
is a group of data elements grouped together under two names.
is a set of some elements grouped together under value
is a group of data elements together with some name.
The data elements in structure are also known as what?
Members
Data
Objects
None of the above
What will be used when terminating a structure?
Semicolon
Colon
Brackets
Dot
Which stream class is used to both read and write on files?
Fstream
Iostream
Ofstream
Ifstream
Which stream class is only used to read files
Ifstream
Ofstream
Iostream
Fstream
What is the difference between array and structure?
Structure can include members of different data types
No difference
Only on their declaration
Arrays can include only integers
What is the output from the following program code?
10 10 10 10 10
11 11 11 11 11
10
0 1 2 3 4
Error
The OR (||) operator:
Stops evaluation upon finding one condition to be true
Has higher precedence that AND (&&) operator
True if all conditions are true
Associates from right to left
Which of the following for headers is not valid for C++ code?
for (integer i =0; j<10; i++);
for (int i = 0; i<9; i++)
for (int i = 0; i<8; i++)
for (int i = 0; i<7; i++)
all
There might be functions with the same name, but different arguments. The function called is the one whose arguments match the invocation. What is this mean?
Function overloading
Function overprocessing
Argument type error
Argument dispatch error
Which of the following cannot be used to create a random numbers?
structures
float
int
none of the mentioned
Please evaluate !(1 && !(0 || 1)).
True
False
Unevaluatable
Not sure
What is the final value of x when the code int x; for(x=0; x<50; x++) {} is run?
50
10
0
51
How many times is a do while loop guaranteed to loop?
Infinitely
0
1
Variable
What is the output of the following code?
value
77.5
Float
Variable
Which of the following is a valid function call (assuming the function exists)?
funct();
funct;
funct x, y;
struct funct();
Which of the following is a complete function?
int funct(int x) {return x=x+1;}
int funct();
void funct[int] {cout&tl;<"Hello"}
void funct{x} {cout<<"Hello"}
Which of the following is required to avoid falling through from one case to the next?
Break;
End;
Stop;
A semicolon;
Which of the following is the proper declaration of a pointer?
int *x;
ptr x;
int &x;
int x;
Which of the following gives the memory address of integer variable a?
&a;
*a;
a;
address(a);
Which of the following gives the memory address of a pointer a?
&a;
*a;
a;
address(a);
Which of the following gives the value stored at the address pointed to by the pointer a?
a;
val(a);
*a;
&a;
Which of the following gives the value stored at the address pointed to by the pointer ptr?
ptr;
val(ptr);
*ptr;
&ptr;
Which of the following accesses a variable in structure b?
b.var;
b->var;
b-var;
b>var;
Which of the following accesses a variable in structure mystruct?
mystruct.var;
mystruct ->var;
mystruct -var;
mystruct >var;
Which of the following correctly accesses the seventh element stored in diana, an array with 100 elements?
diana[6]
diana[7]
diana(7)
diana;
What is the correct way to write the condition y < x < z?
((y < x) && (x < z))
((y < x) || (x < z))
((y < x) & (x < z))
((y < x) AN (x < z))
The value 132.54 can represented using which data type?
Double
Void
Integer
Bool
In an assignment statement “ a=b; ” which of the following statement is true?
The value of b is assigned to variable a but the later changes on variable b will not effect the value of variable
The variable a and the variable b are equal.
The value of variable a is assigned to variable b and the value of variable b is assigned to variable a.
The difference between while structure and do structure for looping is
In while structure condition is tested before executing statements inside loop whereas in do structure condition is tested before repeating the statements inside loop
The do structure decides whether to start the loop code or not whereas while statement decides whether to repeat the code or not
In do structure the condition is tested at the beginning of first iteration
In while statement the condition is tested at the end of first iteration
A function that calls itself for its processing is known as
Inline Function
Nested Function
Overloaded Function
Recursive Function
The keyword endl
Ends current line and starts a new line in cout statement
Ends the line in program. There can be no statements after endl
Ends the output in cout statement
Ends the execution of program where it is written
Strings are character arrays. The last index of it contains the nullterminated character
\0
\n
\t
\1
Variables inside parenthesis of functions declarations have _____ level access
Local
Global
Module
Universal
Array indexing always starts with the number
0
1
-1
10
Which of the following accesses a variable in structure st1?
st1.var;
st1->var;
st1-var;
st1>var;
Which looping process is best used when the number of iterations is known?
For
While
Do-while
Nothing
If there is more than one statement in the block of a for loop, which of the following must be placed at the beginning and the ending of the loop block?
parentheses ( )
braces { }
brackets [ ]
arrows < >
A memory address is…
where a variable is stored.
where a variable is defined.
where a variable is declares.
where a variable is print out.
The set of instructions that a computer will follow is known as..
program
variable
computer
brackets
cin >> number; is
an output statement
a colon
a variable
an input statement
