CBSE Class 12 Computer Science Question Paper Set 1 2015 Outside Delhi with Answers

CBSE Class 12 Computer Science Question Paper Set 1 2015 Outside Delhi with Answers. Students can download the last year question papers using the link below. Free download of examination question papers with solutions. Last 10 year question papers should be practised to get better marks in examinations.

1. (a) Find the correct identifiers out of the following, which can be used for naming Variable, Constants or Functions in a C++ program :  For, while, INT, NeW, delete, 1stName, Add+Subtract, name1

(b) Observe the following program very carefully and write the names of those header file(s), which are essentially needed to compile and execute the following program successfully : type def char STRING[80];

void main()

{

STRING Txt[] = “We love Peace”;

int Count=0;

while (Txt[Count]!=’\0’)

if (isalpha(Txt[Count]))

Txt[Count++]=’@’;

else

Txt[Count++]=’#’;

puts(Txt);

}

(c) Observe the following C++ code very carefully and rewrite it after removing any/all syntactical errors with each correction underlined. 

Note : Assume all required header files are already being included in the program.

#Define float MaxSpeed=60.5;

void main()

{

int MySpeed

char Alert=’N’;

cin≫MySpeed; if MySpeed>MaxSpeed

Alert=’Y’;

cout<<Alert<<endline;

}

 (d) Write the output of the following C++ program code : 

Note : Assume all required header files are already being included in the program.

void Location(int &X,int Y=4)

{

Y+=2;

X+=Y;

}

void main()

{

int PX=10,PY=2;

Location(PY);

cout<<PX<<”,”≪PY<<endl;

Location(PX,PY);

cout<<PX<<”,”≪PY<<endl;

 }

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