WGU D286A ITSW 3172 Java Fundamentals Final Assessment (Qns & Ans) 2026

WGU D286A ITSW 3172 Java Fundamentals Final Assessment (Qns & Ans) 2026

1. Which of the following is true regarding the `Serializable`
interface in Java?
 a) It is a marker interface.
 b) It requires the class to implement the `writeObject()` method.
 c) It is used for deep cloning of objects.
 d) It can only be applied to interfaces.
 ANS: a) It is a marker interface.
 Rationale: The `Serializable` interface does not contain any
methods and is used to indicate that a class can be serialized.
2. Which keyword is used to prevent a method in Java from
being overridden?
 a) final
 b) static
 c) private
 d) protected
 ANS: a) final
 Rationale: When a method is declared with the `final`
keyword, it cannot be overridden in a subclass.
3. What is the purpose of the `transient` keyword in Java? 

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