Final answer:
Ensuring data integrity mainly involves maintaining data unaltered during transit and protecting data from unauthorized changes to preserve its reliability and consistency.
Step-by-step explanation:
Two objectives of ensuring data integrity are ensuring that data is unaltered during transit (Option C) and that data is not changed by unauthorized entities (Option E). Ensuring data remains intact during transit allows for the accurate and reliable transfer of information between systems. This is critical, for example, when organizations share sensitive information that must remain consistent from sender to receiver. In the case of preventing changes by unauthorized entities, this is key for maintaining the trustworthiness of the data, ensuring that information has not been tampered with and remains reliable for decision-making and operations.
Ensuring data integrity involves maintaining the accuracy and consistency of data. Objectives (c) and (e) specifically address this aspect by focusing on preventing unauthorized alterations to the data both during transit and by unauthorized entities. The other options, while important for overall data management and security, are more related to availability (a), encryption (b), and authentication (d), but they don't directly address the prevention of unauthorized changes to the data, which is a core aspect of data integrity.