.Net Quiz for Programmers

1. Question

Which of the following is a valid variable name?

int x;
int 4;
int x y;
int double;

2. Question

What are Objects and Strings?

User-defined reference data types
Predefined value data types
Predefined reference data types
User-defined value data types

3. Question

Which operator accesses the value of an address?

&
*
//
None

4. Question

Which kind of operators are “++” and “- -“?

Unary Operators
Ternary Operators
Assignment Operators
Logical Operators

5. Question

Which of the following you cannot use as a keyword in C#?

Method
Constant name
Variable name
All of the above

6. Question

What does the goto statement in .NET is also known as?

Transfer Statement
Jump Statement
Control Statement
Complex Statement

7. Question

Which of the following is the component of a function that is a list of arguments that we can pass to the function during a call?

Return Type
Body
Access Specifier
Parameters

8. Question

Which of the following statements is false about the Out keyword?

It is used to pass arguments as out-type
It is useful when we don’t want a function to return multiple values.
It is just like reference-type, but it does not require any variables to initialize before passing.
None of the above

9. Question

What are single dimensional, multidimensional and jagged the types of?

Functions
Parameters
Arrays
Variables

10. Question

Which bracket you need to use after the type to create a single-dimensional array?

[]
{}
()
All of them can be used

11. Question

What is used to get an object that can be used to synchronize access to the Array?

IsSynchronized
LongLength
SyncRoot
IsFixedSize

12. Question

What is the “this” keyword in C# used for?

to declare indexers.
to pass a current object as a parameter to another method.
to refer to a current class instance variable.
All of the above

13. Question

How many params keyword/keywords is/are allowed and also, no additional parameter is permitted after params keyword in any function declaration?

1
2
3
As many as you want

14. Question

Which keyword applies restrictions on the class and method?

Volatile
Sealed
Explicit
Params

15. Question

What can we do using the for loop?

Initialize variable
Check the condition
Increment/decrement value.
All of the above

16. Question

Which of the following does a destructor destructs of a class?

Variables
Objects
Parameters
All

17. Question

Which of the following means that you can read the object from a byte stream?

StreamReader
Serialization
Deserialization
System.IO

18. Question

In the base class, what is the base keyword used to access?

Fields
Constructors
Methods
All of the above

19. Question

Which of the following statements is false about compile-time polymorphism?

It is achieved by method overloading.
It is achieved by operator overloading
It is also known as late binding.
It is also known as early binding.

20. Question

Which array is known as the rectangular array in C#?

Single-dimensional
Multi-dimensional
Jagged
None