Western Governors University (WGU) ITSW 2113 D278 Scripting and Programming Foundations Practice Exam

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Which of the following statements about dynamic typing is true?

It restricts variables to a specific type

It allows more flexibility during program execution

Dynamic typing allows more flexibility during program execution because it enables variables to be associated with values of any type at runtime. This means that you can easily change the data type of a variable simply by assigning it a new value of a different type without having to declare or specify the type beforehand.

In dynamic typing, the type of a variable is determined at runtime, which means developers can write more generic and flexible code. This can lead to faster prototyping and a more adaptive approach to coding, as it allows for changes in data types and structures as a program runs. Languages like Python, Ruby, and JavaScript are known for their dynamic typing features.

The other statements do not accurately describe dynamic typing: it does not impose restrictions on variable types, it doesn't inherently reduce runtime errors (in fact, it can sometimes increase the likelihood of type-related runtime errors), and it is not exclusive to certain languages like C++, which is statically typed.

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It reduces runtime errors

It only applies to languages like C++

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