TCS Functions and scope Questions Quiz-1

Question 1

Time: 00:00:00

What is the difference between a function and a method?

A function is a piece of code that is called by name. It can be passed data to operate on (i.e. the parameters) and can optionally return data (the return value). All data that is passed to a function is explicitly passed. A method is a piece of code that is called by a name that is associated with an object.

A method is a piece of code that is called by a name that is associated with an object.

A function is a piece of code that is called by name. It can be passed data to operate on (i.e. the parameters) and can optionally return data (the return value). All data that is passed to a function is explicitly passed.

None of these

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Function can be called by its name whereas method cannot

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A is an answer

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A

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A

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Function can be called by its name whereas method cannot

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c

Question 2

Time: 00:00:00

Consider the following code:

function modify(a,b)
{
integer c, d = 2
c = a*d + b
return c
}

function calculate( )
{
integer a = 5, b = 20, c
integer d = 10
c = modify(a, b);
c = c + d
print c
}

80

40

32

72

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The answer is 40

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The answer is 4

Question 3

Time: 00:00:00

What is the term given to the variable whose scope is beyond all the scopes i.e., it can be accessed by all the scopes?

Universal Variable

Global Variable

External Variable

Auto Variable

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Global Variable

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Global variable

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Global variable

Question 4

Time: 00:00:00

Anu wants to make a function that is not bound to any identifier. Which of the following functions should she incorporate in her program?

Global Function

Null function

Anonymous Function

Friend Function

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anonymous function is associated with predefined function so there is no need to associate any identifier with it .

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Friend function

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its anonymous function becz ..that is not bound to any of the identifier

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global

Question 5

Time: 00:00:00

Which of the following accessibility modes can be the speciﬁer of a top level class’?Top-level classes can only have public, abstract, and final modifiers, and it is also possible to not define any class modifiers at all. This is called default/package accessibility. Besides that, private, protected, and static modifiers cannot be used when declaring top-level classes.

Only Private

Protected and Private

Public and No Modifier

Only No Modifier

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Question 6

Time: 00:00:00

Choose the correct answer. A pseudo-code which is similar to that of C++ and self-explanatory An accessible member function or data member for an object are accessed by the statement objectname.functionname or objectname. data member name respectively.

class brush
{

Private:
integer size, colorcode
function getdata( ) {--}//Statement 1
public:
integer name // Statement 2
function putdata(){...}
}

function main
{

brush b1, b2
print bl.name //Statement 3
b2.getdata() //Statement 4
}

Deleting which line will correct the error in the code?

Statement 1

Statement 2

Statement 3

Statement 4

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but we can access via the object of respective class

Question 7

Time: 00:00:00

function MyDisplay(string MyStr) //statement 1
{
print "Hello !"
print MyStr
return 1 // statement 2
}
function main() //statement 3
{
string str= "Mickey"
MyDisplay(str) // statement 4
}

Which statement will generate an error.

Statement 1

Statement 2

Statement 3

Statement 4

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that return interger but function accept only string

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it might be statement 2 also wrong .but statement is confirmed wrong because it has return value and does not defined in the function MyDisplay();

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In function returning 0 means success. Other values like 1 or -1 resembles error or faliure.

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Since return 1, does not make any sense here.

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in statement 2 and statement 4 there is an error , because in statement 2 a return statemnt is present which will executed.

Question 8

Time: 00:00:00

Choose the correct answer
Tanuj writes the code for a function that takes as input n and calculates the sum of first n natural numbers.

Function sum( n )
{
if(??)
return 1
else
return (n + sum(n-1))
end
}

Fill in ?? in the code.

n equals 1

n equals 2

n>=1

n>=2

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Question 9

Time: 00:00:00

Choose the correct answer
Shrishti writes the code for a function that computes the factorial of the inputted number n.

function factorial(n)
{
if(n equals 1)
return 1
else
— MISSING STATEMENT —
end
}

Fill in the missing statement.

return factorial(n-1)

return n*factorial(n)

return n*(n-1)

return n*factorial(n-1)

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