A bank of 207 exam style questions for CompTIA Security+ certification candidates. Every answer comes with a four part rationale: why the correct answer is right, why the others are wrong, the principle behind it, and the takeaway to remember.
Sample question 1. BASICS: The CIA triad in security stands for Confidentiality, Integrity, and:
A. Authentication
B. Availability
C. Authorization
D. Auditing
Answer: B. Correct: The CIA triad is Confidentiality, Integrity, and Availability, the three core goals every security control is meant to protect. Why the other choices are wrong: authentication, authorization, and auditing are important access concepts but they are services that support the triad, not the third pillar of it. Principle: confidentiality keeps data secret, integrity keeps it accurate, and availability keeps it reachable when needed. Takeaway: the A in CIA is Availability.
Sample question 2. BASICS: The C in the CIA triad stands for:
A. Control
B. Continuity
C. Compliance
D. Confidentiality
Answer: D. Correct: The C stands for Confidentiality, ensuring information is disclosed only to those authorized to see it. Why the other choices are wrong: control, compliance, and continuity are real security ideas but none is the C of the triad. Principle: confidentiality is enforced through tools like encryption and access controls that stop unauthorized disclosure. Takeaway: the C in CIA is Confidentiality.
Sample question 3. BASICS: The I in the CIA triad stands for:
A. Inspection
B. Integrity
C. Isolation
D. Identity
Answer: B. Correct: The I stands for Integrity, the assurance that data has not been altered or tampered with and is trustworthy. Why the other choices are wrong: identity, isolation, and inspection are security concepts but none is the I of the triad. Principle: integrity is verified with hashing and digital signatures that detect any change to data. Takeaway: the I in CIA is Integrity.
What you get on iKuiz
207 questions for this exam, in Live Test, Study Mode, Flashcards, and MyTutor, a personal AI style tutor that teaches one concept at a time.
A readiness score that tells you honestly whether you are prepared, plus your weak areas by topic.
Every question read aloud if you want it, and a new free Question of the Day every day.
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