To completely verify the integrity of an EnCase evidence file, which statement is true?

To completely verify the integrity of an EnCase evidence file, both the CRC (Cyclic Redundancy Check) values and the MD5 (Message Digest 5) hash must verify. This is because CRC checks provide a quick way to detect errors in data transmission or storage, while the MD5 hash offers a more robust method to confirm that the data has not been altered.

When both values match their expected values, it gives a higher level of assurance that the evidence file has remained intact and uncorrupted. The CRC values are calculated for the file segments and can swiftly indicate any changes to the data, while the MD5 hash provides a unique fingerprint of the entire file, ensuring that even the smallest alteration can be detected.

Thus, having both the CRC and MD5 verify ensures a thorough validation process, encompassing both error detection and data integrity verification.