Microsoft Certified Solutions Developer (MCSD) Practice Test 2025 – Complete Exam Prep

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What does it mean for an object to be logically immutable?

The object cannot change after it is created

When an object is described as logically immutable, it signifies that once the object has been created, its state cannot be altered. This means that any operations that would typically modify the object instead result in the creation of a new object that reflects the changed state. The key aspect of logical immutability is that from the perspective of the user or consumer of the object, the object appears to be unchangeable throughout its lifetime, although the underlying implementation may allow for the instantiation of new objects with new values.

This concept is particularly beneficial in programming paradigms that favor functional programming principles, concurrency, and state management, as it reduces side effects and enhances predictability in code behavior. Therefore, the idea of an object being logically immutable reinforces the integrity of the data since it cannot be unintentionally changed after its creation, ensuring consistent behavior in applications.

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The object can change but not in its memory address

The object can be modified at runtime

The object cannot be created multiple times

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