Which of the following should a technician perform to verify the integrity of a file transferred from one device to another?

Rationale

Hashing is the method a technician should perform to verify the integrity of a file transferred from one device to another.

Hashing creates a unique digital fingerprint of a file, allowing comparison before and after transfer to ensure that the file has not been altered or corrupted. By comparing hash values, technicians can confirm that the contents remain unchanged during the transfer process.

A (Authentication) YOUR ANSWER

Authentication verifies the identity of a user or device rather than confirming the integrity of a file itself. While important in establishing secure connections, it does not involve checking whether the file content has remained consistent after transfer.

B (Obfuscation) YOUR ANSWER

Obfuscation refers to the process of making something unclear or difficult to understand, often used to protect code or data from unauthorized access. This technique does not assess file integrity; instead, it serves as a method of disguising information rather than ensuring it has not been modified.

C (Hashing) CORRECT

Hashing is a process that generates a fixed-size string of characters (the hash value) from data of any size, allowing for easy verification of file integrity. When a file is transferred, its hash value can be recalculated and compared to the original hash to confirm that no changes occurred during the transfer process.

D (Encryption) YOUR ANSWER

Encryption secures data by converting it into a coded format that can only be read by authorized parties. While it protects the file's contents from unauthorized access, it does not provide a mechanism for verifying whether the file has been altered during transfer.

Conclusion

To ensure the integrity of files during transfer, technicians should utilize hashing. This method allows for efficient comparison of file versions before and after the transfer, confirming that the data remains intact. Techniques like authentication, obfuscation, and encryption serve different purposes and do not directly verify file integrity, highlighting the unique importance of hashing in data management.

Which of the following should a technician perform to verify the integrity of a file transferred from one device to another?

Hashing is the method a technician should perform to verify the integrity of a file transferred from one device to another.

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