Question 1 of 10Security Operations
Suppose your model is overfitting. Which of the following is NOT a valid way to try and reduce the overfitting?
CompTIA Security+ practice questions
10 free questions with answers, then a full practice bank built around the CompTIA Security+ topics.
What the CompTIA Security+ covers
Entry-level cybersecurity certification covering core security concepts, threats, architecture, and operations.
CompTIA Security+ (SY0-701). The shares below are how SyncStudy weights its practice for each topic, modeled on the published outline.
General Security Concepts
12%Security controls, Cryptography basics, Zero trust
Threats, Vulnerabilities & Mitigations
22%Threat actors, Attack types, Vulnerabilities, Mitigation techniques
Security Architecture
18%Network architecture, Data protection, Resilience
Security Operations
28%Identity & access, Monitoring, Incident response, Hardening
Security Program Management & Oversight
20%Governance, Risk management, Compliance, Third-party risk
Free CompTIA Security+ practice set
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0 of 10 answered
- Question 2 of 10Threats, Vulnerabilities & Mitigations
Consider the representation of six-bit numbers by two's complement, one's complement, or by sign and magnitude. In which representation is there overflow from the addition of the integers 011000 and 011000?
- Question 3 of 10Security Program Management & Oversight
Statement 1| The F1 score can be especially useful for datasets with class high imbalance. Statement 2| The area under the ROC curve is one of the main metrics used to assess anomaly detectors.
- Question 4 of 10Security Architecture
Let G = (V, E) be a connected, undirected graph, and let a and b be two distinct vertices in V. Let P_1 be the problem of finding a shortest simple path between a and b, and let P_2 be the problem of finding a longest simple path between a and b. Which of the following statements about P_1 and P_2 is true?
- Question 5 of 10General Security Concepts
Suppose that Alice and Bob sent confidential text messages to one another last month through an encrypted messaging system. Alice and Bob are worried that an adversary might compromise one of their computers today, while they are taking the 6.858 final exam, and would then be able to decrypt those messages. Which of the following security properties can address Alice and Bob’s concern?
- Question 6 of 10Security Operations
In which of the following representations of numbers by 8-bit words is the addition of the integers 109 and -42 within range? I. One's complement II. Two's complement III. Sign and magnitude
- Question 7 of 10Threats, Vulnerabilities & Mitigations
A user enters a Web address in a browser, and a request for a file is sent to a Web server. Which of the following best describes how the file is sent to the user?
- Question 8 of 10Security Program Management & Oversight
A computer simulation is created to simulate the growth of a certain plant species in different conditions. Which of the following actions could be used to validate the model used in the simulation?
- Question 9 of 10Security Architecture
Statement 1| Overfitting is more likely when the set of training data is small. Statement 2| Overfitting is more likely when the hypothesis space is small.
- Question 10 of 10General Security Concepts
Why is it that the compiler does not know the absolute address of a local variable?
Your readiness estimate
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546 practice questions, timed mocks, adaptive tests and a readiness estimate that shows which topics need work.
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Questions
Are these real CompTIA Security+ questions?
No. They are openly licensed practice questions from public datasets: MMLU (Hendrycks et al.) (MIT). We group them by the CompTIA Security+ topic areas so you can practice, but they are not taken from the official exam.
Do I need an account to try them?
No. All 10 questions on this page are free and show the correct answer after you pick one.
What does CompTIA Security+ exam mode add?
A practice bank of 546 questions, timed mock exams weighted by the topics above, adaptive tests that adjust to your level, and a readiness estimate for each topic. Exam mode is part of the Pro plan.
Is the readiness estimate a prediction of my score?
No. It is an estimate based on your practice in SyncStudy. It shows a range, how confident it is, and which topics have enough practice to measure. It is not an official score.
Practice for another exam
Sample questions on this page come from MMLU (Hendrycks et al.) (MIT). Text may be lightly reformatted. Exam names are used only to describe what you can practice. SyncStudy is not affiliated with or endorsed by the CompTIA Security+ provider.
