Which mechanism specifically helps verify data integrity by producing a unique fixed-length value that changes if the underlying data is altered?
Multi-factor authentication
Access control list
Hash function
Symmetric encryption algorithm
A cryptographic hash function processes input data to create a unique, fixed-length digest. Because any modification to the original data results in a completely different digest, comparing stored and newly generated hashes quickly reveals unauthorized changes, protecting integrity. Encryption focuses on confidentiality, access control lists regulate permissions, and multi-factor authentication verifies user identity; none of these directly detect data alteration the way hashing does.
Bash is our AI bot, trained to help you pass your exam. AI Generated Content may display inaccurate information, always double-check anything important.
All IT & Cybersecurity Package plans include the following perks and exams .
Our pricing is simple. Full access to all certifications and exams in each package, for one price.
As many practice tests for as many topics as you want.
Use study mode non-stop, no limits.
Access to our AI assistant, Bash, trained to help you pass your exam.
Track your scores over time in study mode and report cards.
See how you improve over time, and where you need to focus.
Access our store with even bigger discounts than before.
Unlimited access to all performance questions and be prepared for the real thing.
All IT & Cybersecurity Package plans include unlimited access to the following study materials.
Create an account or sign in to access our study materials.