Exam 1z0-819 topic 1 question 148 discussion

answer : D B - is not right but it may be used as a second choice A. is not correct by default transient fields are not serializable B. not sure "the class definition used is the same as the class definition " I would say the class attributes with the appropriate type. it Could be casting like ValueObject vo2 = (ValueObject) in.readObject(); This class definition is stored as a part of the serialized object. This stored metadata enables the deserialization process to reconstitute the objects and map the stream data into the class attributes with the appropriate type. C. is not correct several ways of serialization . Implement Serializable with undefined readObject and writeObject methods D. is right

CORRECT ANSWERD

The two good practices for serializing Java objects are: B. Ensure that the class definition used is the same as the class definition used by the Java runtime at the time when the object was serialized. This ensures that the serialized object can be correctly deserialized by the Java runtime using the same class definition. D. Implement secure serialization by generating a secure object hash or using encryption. Implementing secure serialization helps protect the integrity and confidentiality of the serialized data, which is important for sensitive or secure information.

Ensuring that the class definition used is the same as the class definition used by Java runtime at the time when the object was serialized is important because it ensures that the object can be correctly deserialized 1. Implementing secure serialization by generating a secure object hash or using encryption can help to protect sensitive data and prevent unauthorized access to serialized objects 1.