Free CompTIA Security Plus SY0-701 Actual Exam Questions - Question 9 Discussion

C imo, hashing is the only one that actually detects changes in the file.

Masking and obfuscation mainly hide data but don’t verify integrity. Encryption keeps data secret but won’t tell you if a file was altered. So, does that make C the only real choice here?

Maybe C. Hashing makes sense because it generates a unique code for the file content, so any change in the file will change the hash. Encryption (B) protects confidentiality but doesn’t directly verify if a file’s been changed. Masking (A) and obfuscation (D) are more about hiding data rather than checking integrity. So hashing is clearly the best fit here.

C hashing creates a unique fingerprint to detect any file changes.

C. Hashing is used to check if files have been altered, so it fits best for confirming file integrity here.