Ilp C++ Quiz Prelims 1
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ILP C++ Quiz
- 1.What is the output of the following snippet? int a=0101; int b=101; cout<<a<<” , ”<<b;
- A.
0101,101
- B.
101,101
- C.
Compilation Error
- D.
101 0110
- 2.What is the output of the following code ? int i = 10; int &r; r = &i; cout<<i<<":"<<r;
- A.
10 10
- B.
Compilation Error
- C.
10
- D.
None of the above
- 3.What is the output of the following snippet ? class Test { }; int main() { Test t; cout<<sizeof(t); return 0; }
- A.
0
- B.
1
- C.
None of the above
- D.
Compilation Error
- 4.Which of the following way is the correcy way to set a value 3.14 in a variable pi such that it can not be modified ?
- A.
Float pi = 3.14F;
- B.
#define pi 3.14F;
- C.
Const float pi = 3.14F;
- D.
Const float pi; pi = 3.14F
- 5.What is the output of the following snippet ? unsigned int a = 5; int b=2; int status = (a>b)?1:0; cout<<status;
- A.
1
- B.
0
- C.
01
- D.
10
- 6.What is the output of the following snippet ? int *p=10; cout<<*p;
- A.
10
- B.
Address of '10'
- C.
Compilation Error
- D.
None of the above
- 7.What is the output of the following code snippet ? int main() { int a=1, b=2, c=3,d,e; d=a,b,c; e=(a,b,c); cout<<d<<e;
- A.
1,1
- B.
1,3
- C.
3,3
- D.
3,1
- 8.What is the output of the following snippet ? int a=5.6; float b=5; cout<<a<<”\t”<<b;
- A.
5.6,5
- B.
5,5.0
- C.
5,5 and warning
- D.
Error
- 9.What is the output of the following snippet ? double a=10.5; double b=4.0 cout<<a%b<<” “<<a*b; cout<<” “<<a+b<<” “<<a-b;
- A.
2.5 5.0
- B.
Compilation Error
- C.
2
- D.
None of the Above
- 10.What is the output of the following snippet ? char* const p="abc"; cout<<p; p=“x”; cout<<p;
- A.
Abc,x
- B.
Abc,xbc
- C.
Segmentation Fault
- D.
Compilation Error
- 11.What is the output of the following snippet ? int main() { int a=10; { a=20; { a=30; cout<<a; } cout<<a; } cout<<a; }
- A.
30,20,10
- B.
30,30,30
- C.
10,20,30
- D.
Compilation Error
- 12.What is the output of the following snippet ? cout<<sizeof(NULL)<<" "<<sizeof("");
- A.
0,0
- B.
8,8
- C.
8,1
- D.
4,0
- E.
4,1
- F.
4,4
- 13.What is the output of the following snippet ? int a(2); int b=2; cout<<a<<”\t”<<b;
- A.
2,2
- B.
Compilation Error
- C.
Garbage Value, 2
- D.
2,Garbage Value
- 14.What is the output of the following snippet ? int main() { cout<<a; return 0; } int a=10;
- A.
10
- B.
0
- C.
Runtime Error
- D.
Compilation Error
- 15.What is the Output of the following code ? int a=1,b=2; a^=b^=a^=b; cout<<a<<" "<<b;
- A.
1,2
- B.
1,1
- C.
2,1
- D.
2,2
- 16.What is the output of the following snippet ? int a = 5+NULL; cout<<a;
- A.
5
- B.
NULL
- C.
Error
- D.
None Of the Above
- 17.What is the output of the following snippet ? float a=3.5; a++; char c='A'; c++; int i=-2; i++; cout<<a<<"\t"<<c<<"\t"<<i;
- A.
3.6 B -3
- B.
4.6 B -1
- C.
4.5 B -1
- D.
Compilation Error
- 18.What is the output of the following snippet ? int main() { int a=1; cout<<a+++++a; }
- A.
3
- B.
4
- C.
Compilation Error
- D.
None of the above
- 19.What is the output of the following snippet ? #define SQUARE(X) (X*X) int main() { cout<<SQUARE(5); cout<<SQUARE(2+3); }
- A.
25,25
- B.
25,13
- C.
Compilation Error
- D.
None Of the above
- 20.What is the output of the following snippet? int a=10; cout<<a++*a++<<”\t”; cout<<a++*++a<<”\t”;
- A.
110,156
- B.
100,169
- C.
256,225
- D.
None Of the above
- 21.What is the output of the following snippet ? cout<<2/9<<"\t"; cout<<2.0/9<<"\t"; cout<<2/9.0<<"\t"; cout<<2.0/9.0<<"\t";
- A.
0.2 0 0 0.2
- B.
0 0 0 0.2
- C.
0 0.2 0.2 0.2
- D.
0 0.2 0 0.2
- 22.What is the output of the following snippet ? short int a=1; a=a<<15; cout<<a;
- A.
-32768
- B.
32767
- C.
30
- D.
None of the Above
- 23.What is the output of the following snippet ? int array[10] = {2,1,4,5}; int &r = array[2]; cout<<*r;
- A.
4
- B.
Compilation Error
- C.
1
- D.
None of the above
- 24.What is the output of the following code snippet ? int a=1,b=2; int x=!!a; int y=!a&&b; cout<<x<<”\t”<<y;
- A.
1 1
- B.
1 0
- C.
0 0
- D.
True false
- 25.What is the output of the following code snippet ? int a=1,b=1; int x=(a<2)&&(b=100); int y=(a==b)&&(a!=b); cout<<x<<”\t”<<y<<”\t”<<a<<”\t”<<b;
- A.
1 1 1 0
- B.
0 100 0 0
- C.
1 0 1 1
- D.
1 0 1 100
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