gs gs108 Miscellaneous Topics - Unsafe Code Pointers Basics - Quiz No.1
gs gs108 CSharp Quiz
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Question 1: Pointer variable is used to hold the _________ of the variable.
Value
Address
Value and Address
Name of the variable
Question 3: Choose the correct statement among the given statements?
Use of return statement is necessary in every function
Return statement may not be followed by a parenthesis
A program may contain more than one return statement
Return statement may not return a value
Question 4: What is the size of a char pointer?
1 byte
2 byte
3 byte
4 byte
Question 5: After incrementing a float pointer ptr by 1 it would be incremented by __________
1 byte
2 bytes
3 bytes
4 bytes
Question 6: Which of the following job is done by the instruction ++*p for an integer pointer p?
increment value contained at address p
increment address contained in p
Both increment value contained at address p and increment address contained in p
neither increment value contained at address p nor increment address contained in p
Question 7: What will be the output of the following C# code snippet?
class UnsafeCode { unsafe static void Main() { int a = 2; int b = 4; int *a1 = &a; int *b1 = &b; Console.WriteLine(*a1 + *b1); } }
6
print garbage value
print -6
print address of b + a
Question 8: What will be the output of the following C# code segment?
class UnsafeCode { unsafe static void Main() { int n = 10; void* p = &n; Console.WriteLine(*p); Console.ReadLine(); } }
The program will print 10
Run time error
Compile time error
Output is the address contained in p
Question 9: Which among the following is referred as an array of pointers?
int *p;
int (*)p;
int p[4];
int*[4] p;
