php mcq questions with answers


                                
_________ are reserved, and cannot be used as identifiers.
A. Keywords  
B. literal  
C. variables  
D. Identifiers  
                                
Boxing converts a value type on the stack to an ______ on the heap.
A. Bool type  
B. Instance type  
C. Class type  
D. Object type
                                
The character pair ?: is a________________available in C#.
A. Unary operator  
B. Ternary operator  
C. Decision operator  
D. Functional operator
                                
In C#, all binary operators are ______.
A. Center-associative  
B. Right-associative  
C. Left-associative  
D. Top-associative
                                
An _______ is a symbol that tells the computer to perform certain mathematical or logical manipulations.
A. Operator  
B. Expression  
C. Condition  
D. Logic