C#
C# Programming Knowledge Check
Test your knowledge of C# programming concepts with our engaging quiz! Designed for both beginners and seasoned developers, this quiz includes 10 multiple-choice questions that cover a wide range of topics.
Participate to:
- Assess your understanding of variable naming conventions
- Learn about type conversions and operators
- Challenge your knowledge on C# exceptions
1 - Which of the following is correct about variable naming conventions in C#?
A - A name must begin with a letter that could be followed by a sequence of letters, digits (0 - 9) or underscore.
B - The first character in an identifier cannot be a digit.
C - Both of the above.
D - None of the above. Show Answer
2 - Value type variables in C# are derived from the class System.ValueType?
A - true
B - false
3 - Which of the following converts a floating point or integer type to a decimal type in C#?
A - ToDecimal
B - ToDouble
C - ToInt16
D - ToInt32
4 - Which of the following converts a type to an unsigned big type in C#?
A - ToType
B - ToUInt16
C - ToUInt32
D - ToUInt64
5 - Which of the following method helps in returning more than one value?
A - Value parameters
B - Reference parameters
C - Output parameters
D - None of the above.
6 - Which of the following is correct about null coalescing operator in C#?
A - The null coalescing operator is used with the nullable value types and reference types.
B - It is used for converting an operand to the type of another nullable (or not) value type operand, where an implicit conversion is possible.
C - If the value of the first operand is null, then the operator returns the value of the second operand, otherwise it returns the value of the first operand.
D - All of the above.
7 - Which of the following is the correct about class destructor?
A - A destructor is a special member function of a class that is executed whenever an object of its class goes out of scope.
B - A destructor has exactly the same name as that of the class with a prefixed tilde (~) and it can neither return a value nor can it take any parameters.
C - Both of the above.
D - None of the above.
8 - C# supports multiple inheritance.
A - true
B - false
9 - Which of the following preprocessor directive allows generating an error from a specific location in your code in C#?
A - define
B - region
C - line
D - error
10 - Which of the following is true about System.ApplicationException class in C#?
A - The System.ApplicationException class supports exceptions generated by application programs.
B - Exceptions defined by the programmers should derive from this class.
C - Both of the above.
D - None of the above.
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