CompTIA CySA+ exam (CS0-003) - CompTIA

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Sample CS0-003 Exam Questions & Explanations

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Question #1 Verified Q&A
A recent zero-day vulnerability is being actively exploited, requires no user interaction or privilege escalation, and has a significant impact to confidentiality and integrity but not to availability. Which of the following CVE metrics would be most accurate for this zero-day threat?
A CVSS: 31/AV: N/AC: L/PR: N/UI: N/S: U/C: H/1: K/A: L
B CVSS:31/AV:L/AC:L/PR:R/UI:R/S:U/C:H/I:L/A:H
C CVSS:31/AV:K/AC:L/PR:H/UI:R/S:C/C:H/I:H/A:L
D CVSS:31/AV:N/AC:L/PR:N/UI:H/S:U/C:L/I:N/A:H
Correct Answer: CVSS: 31/AV: N/AC: L/PR: N/UI: N/S: U/C: H/1: K/A: L
Explanation:
This answer matches the description of the zero-day threat. The attack vector is network (AV:N), the attack complexity is low (AC:L), no privileges are required (PR:N), no user interaction is required (UI:N), the scope is unchanged (S:U), the confidentiality and integrity impacts are high (C:H/I:H), and the availability impact is low (A:L). Official Reference: https://nvd.nist.gov/vuln-metrics/cvss
Question #2 Verified Q&A
Which of the following tools would work best to prevent the exposure of PII outside of an organization?
A PAM
B IDS
C DLP
D PKI
Correct Answer: DLP
Explanation:
Data loss prevention (DLP) is a tool that can prevent the exposure of PII outside of an organization by monitoring, detecting, and blocking sensitive data in motion, in use, or at rest.
Question #3 Verified Q&A
An organization conducted a web application vulnerability assessment against the corporate website, and the following output was observed:<br />
<br />
<img src="https://examsqa.com/storage/question-images/comptia-cysa-exam-cs0-003_page_2_Im2.jpg" alt="Exhibit" style="max-width: 100%; height: auto;" /><br />
<br />
Which of the following tuning recommendations should the security analyst share?
A Set an HttpOnlvflaq to force communication by HTTPS
B Disable the cross-origin resource sharing header
C Configure an Access-Control-Allow-Origin header to authorized domains
D Block requests without an X-Frame-Options header
Correct Answer: Block requests without an X-Frame-Options header
Explanation:
The output shows that the web application is vulnerable to clickjacking attacks, which allow an attacker to overlay a hidden frame on top of a legitimate page and trick users into clicking on malicious links. Blocking requests without an X-Frame-Options header can prevent this attack by instructing the browser to not display the page within a frame.
Question #4 Verified Q&A
Which of the following items should be included in a vulnerability scan report? (Choose two.)
A Service-level agreement
B Lessons learned
C Risk score
D Education plan
E Affected hosts
F Playbook
Correct Answer: Risk score, Affected hosts
Explanation:
A vulnerability scan report should include information about the affected hosts, such as their IP addresses, hostnames, operating systems, and services. It should also include a risk score for each vulnerability, which indicates the severity and potential impact of the vulnerability on the host and the organization. Official Reference: https://www.first.org/cvss/
Question #5 Verified Q&A
The Chief Executive Officer of an organization recently heard that exploitation of new attacks in the industry was happening approximately 45 days after a patch was released. Which of the following would best protect this organization?
A A mean time to remediate of 30 days
B A mean time to detect of 45 days
C Third-party application testing
D A mean time to respond of 15 days
Correct Answer: A mean time to remediate of 30 days
Explanation:
A mean time to remediate (MTTR) is a metric that measures how long it takes to fix a vulnerability after it is discovered. A MTTR of 30 days would best protect the organization from the new attacks that are exploited 45 days after a patch is released, as it would ensure that the vulnerabilities are fixed before they are exploited

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Our CS0-003 (CompTIA CySA+ exam) practice question bank currently includes 462 verified questions with comprehensive explanations.
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Yes, all CompTIA CS0-003 practice questions are regularly updated and verified against current exam objectives.
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The CS0-003 (CompTIA CySA+ exam) question bank is built to mirror the real exam's format and topics, with detailed explanations for every answer so you understand the reasoning — not just memorize responses.
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