CompTIA Security+
by CompTIA • Security+
CompTIA Security+ is the baseline certification for security roles, the credential many employers and DoD 8570 baselines require to get in the door.
1,000+ practice questions5 exam domainsFree trial included
Exam blueprint
Official domain weightings: where the questions come from, and where to spend your study time.
Free trial
Try a real Security+ question
Feel the real question style and difficulty. No card required. Then unlock the full 1,000+ question bank, blueprint-aligned by domain, with your readiness score and pass confidence.
Start your free trialWhich type of malware encrypts a victim's data and demands payment to restore access?
ASpyware
BRansomware
CRootkit
DWorm
Why: Ransomware encrypts data and demands a ransom for the decryption key. Backups and user training are key mitigations.