18 Questions
Which of the following languages is an example of a language that uses dynamic type checking?
JavaScript
What happens if the value of a * b is out of the acceptable range of ints?
A type error occurs at runtime
What is dynamic type checking?
Checking the type of a variable at runtime
What is the disadvantage of dynamic type checking?
It comes with a runtime performance penalty
What is implicit type conversion?
Automatically changing the type of a variable to a compatible type
In which language does implicit type conversion occur?
C
What is the primary requirement for the % operation to be applied?
Both operands must be of the same type of integer
What type of language is considered strongly typed if it detects each and every type error during compilation?
Statically typed
Where is the information needed for static type checking obtained from?
Via declarations and stored in a master symbol table
What is the primary goal of type checking?
To detect and prevent type errors
What type of type checking is done at compile time?
Static type checking
Which type of static type checking is used to prevent errors in branching statements?
Flow of control checking
What type of error occurs when a language does not detect type errors during compilation?
Runtime type error
What is one of the benefits of type coersion?
It can free a programmer from worrying about type details
What happens when an operator is applied to incompatible operands?
The compiler will report an error
Which languages are stricter about type coercion?
Ada and Pascal
What is the purpose of type checks in static type checking?
To ensure the operator is applied to compatible operands
What is a potential drawback of implicit type promotion?
It can hide serious type errors that might otherwise have popped up during compilation
This quiz assesses your understanding of dynamic type checking, a process that involves checking the type of data at runtime. It's essential in programming languages to prevent errors and ensure smooth execution. Test your knowledge of dynamic type checking and its applications.
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