CAS-005 Exam Dumps : CompTIA SecurityX Certification Exam

SecurityX CAS-005 network architecture objectives emphasize limiting exposure of vulnerable systems by using application-aware firewalls with strict rule sets.

This approach directly reduces the attack surface by allowing only approved application traffic to and from the vulnerable systems, mitigating risk until systems are patched or replaced.

EDR (A) enhances detection but doesn’t inherently reduce the exposed services.

Network segmentation in monitor mode (B) doesn’t block threats.

IDS (C) detects activity but does not block it.

Step-by-Step Explanation:

Understand the QuestionRequirements:The goal is to use a regular expression (regex) to match software versions 10.0 through 10.3, but exclude version 10.4.

Review Regex Syntax:

[ ] indicates a character set (matches any one character in the set).

[0-3] matches any digit between 0 and 3.

\. escapes the period (.) so it matches a literal period instead of acting as a wildcard.

( ) groups parts of the regex together.

Analyze Each Option:

Option A: Reader(*)[1][0] .[0-4:

Incorrect. The use of (*) is not valid syntax in this context and [0-4 is incomplete or misformatted.

Option B: Reader[11[01X.f0-3 '

Incorrect. This is an invalid regex syntax, mixing character sets and mismatched brackets.

Option C: Reader( )[1][0] .[0-3:

Correct. This regex is valid and matches " Reader 10.0 " , " Reader 10.1 " , " Reader 10.2 " , and " Reader 10.3 " while excluding " Reader 10.4 " .

Breakdown:

Reader: Matches the text " Reader " .

[1][0] : Matches " 10 " as a combination of two characters.

\.: Matches the literal period.

[0-3]: Matches any single digit between 0 and 3.

Option D: Reader( )[1][0] X.[1-3:

Incorrect. The syntax X.[1-3 is invalid, and this does not match the required versions.

Conclusion:The regex in Option C correctly identifies all affected versions (10.0, 10.1, 10.2, 10.3) while excluding the unaffected version (10.4).

User and Entity Behavior Analytics (UEBA) is the best solution to help the company overcome challenges associated with suspicious activity that cannot be categorized by traditional detection tools. UEBA uses advanced analytics to establish baselines of normal behavior for users and entities within the network. It then identifies deviations from these baselines, which may indicate malicious activity. This approach is particularly effective for detecting unknown threats and sophisticated attacks that do not match known indicators of compromise (IoCs).