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Exam CAS-005 Topic 3 Question 163 Discussion

Actual exam question for CompTIA's CAS-005 exam
Question #: 163
Topic #: 3
A security analyst received a report that an internal web page is down after a company-wide update to the web browser Given the following error message:

Which of the following is the best way to fix this issue?

Suggested Answer: D Vote an answer

The error message " NET::ERR_CERT_WEAK_SIGNATURE_ALGORITHM " indicates that the web browser is rejecting the certificate because it uses a weak signature algorithm. This commonly happens with self-signed certificates, which often use outdated or insecure algorithms.
Why Discontinue Self-Signed Certificates?
Security Compliance: Modern browsers enforce strict security standards and may reject certificates that do not comply with these standards.
Trusted Certificates: Using certificates from a trusted Certificate Authority (CA) ensures compliance with security standards and is less likely to be flagged as insecure.
Weak Signature Algorithm: Self-signed certificates might use weak algorithms like MD5 or SHA-1, which are considered insecure.
Other options do not address the specific cause of the certificate error:
A). Rewriting legacy web functions: Does not address the certificate issue.
B). Disabling deprecated ciphers: Useful for improving security but not related to the certificate error.
C). Blocking non-essential ports: This is unrelated to the issue of certificate validation.
References:
CompTIA SecurityX Study Guide
" Managing SSL/TLS Certificates, " OWASP
" Best Practices for Certificate Management, " NIST Special Publication 800-57

by Burton at Apr 30, 2026, 06:22 AM

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