Interview Questions

1. Pointer variable is used to hold the _________ of the variable

Options:

a. Value

b. Address

c. Value and Address

d. Name of the variable

Reveal Answer

2. Which among the given operators is referred to as ‘address of’ operator?

Options:

a. *

b. ^

c. &

d. ~

Reveal Answer

3. Unsafe code in C# can be written in the flowing block:

Options:

a. unsafe int ThisMethod(){}

b. unsafe: int ThisMethod() { }

c. int ThisMethod():unsafe { }

d. All of the Above

Reveal Answer

4. What is the output of the below program? static void Main(string[] args) { int ab = 32; * p = &ab; Console.WriteLine("value of ab is {0}", *p); Console.ReadLine(); }

Options:

a. Compiletime error

b. Runtime error

c. 32

d. None

Reveal Answer

5. Which of the following statement is correct about unsafe mode?

Options:

a. It increase the performance of the Program.

b. We use fixed buffers inside an unsafe context. With a fixed buffer, you can write and read raw memory without any of the managed overhead.

c. It provides a way to interface with memory.

d. All of the above.

Reveal Answer

6. Which of the following are Disadvantages of unsafe mode?

Options:

a. It increase the responsibility of the programmer to check for security issues and extra developer care is paramount to averting potential errors or security risks.

b. It bypasses security.

c. It also avoids type checking, that can generate errors sometimes.

d. All the above

Reveal Answer

7. Pointer types are inherited from_______?

Options:

a. Object

b. String

c. Struct

d. None of the above

Reveal Answer

8. A pointer is nothing but a variable_____?

Options:

a. Variable

b. Datatype

c. Class

d. Struct

Reveal Answer

9. What is the o/p of the below program int x = 100; int *ptr = & x; Console.WriteLine((int)ptr)

Options:

a. Prints value only.

b. Prints memory address only.

c. Compiletime error

d. Runtime error

Reveal Answer

10. C# supports both implicit and explicit pointer conversions within unsafe context?

Options:

a. Yes

b. No

Reveal Answer

Interview Questions and Answer

1. Pointer variable is used to hold the _________ of the variable

2. Which among the given operators is referred to as ‘address of’ operator?

3. Unsafe code in C# can be written in the flowing block:

4. What is the output of the below program? static void Main(string[] args) { int ab = 32; * p = &ab; Console.WriteLine("value of ab is {0}", *p); Console.ReadLine(); }

5. Which of the following statement is correct about unsafe mode?

6. Which of the following are Disadvantages of unsafe mode?

7. Pointer types are inherited from_______?

8. A pointer is nothing but a variable_____?

9. What is the o/p of the below program int x = 100; int *ptr = & x; Console.WriteLine((int)ptr)

10. C# supports both implicit and explicit pointer conversions within unsafe context?

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