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| Section | Weight | Objectives |
|---|---|---|
| Security Engineering and Cryptography | approx. 23% | - Cryptographic solutions and implementations - Secure network and system engineering - Identity and access management design |
| Governance, Risk, and Compliance | approx. 22% | - Risk management frameworks - Security policies and compliance requirements - Business continuity and disaster recovery planning |
| Security Architecture | approx. 21% | - Cloud and hybrid environment security - Secure enterprise architecture design - Secure system design principles |
| Security Operations | approx. 25% | - Threat management and response - Security monitoring and analysis - Incident response and recovery |
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NEW QUESTION # 265
An analyst needs to identify security event trends. The following is an excerpt from the SIEM:
Time
Alert
Source
Destination
20250407-UTC
Successful login from uncommon auth method in 24 hours
user1
AD-DC-01.corp
20250407-UTC
User accessed sensitive resources
user1
NFS-01/financial/share
20250407-UTC
Potential password spraying from host
10.10.15.100
iga-server.corp
20250407-UTC
Threshold exceeded user visiting high risk websites
user2
freehacks.com
20250407-UTC
Risk score exceeded for user
user1
bar.ru
20250407-UTC
NULL
NULL
NULL
Which of the following is the most practical way to identify trends?
Answer: C
Explanation:
The best answer is C. Correlating based on source field in batches of time . To identify trends in SIEM data, the analyst should group related events over a time window and correlate them around a common field. In this excerpt, user1 appears repeatedly across multiple alert types, including unusual authentication, access to sensitive resources, and elevated risk score. That pattern is exactly the sort of repeated behavior that becomes visible when events are correlated by source over time. CompTIA's official SecurityX objectives in the Security Operations domain include "Data analysis: indicators of malicious activity, trend analysis, statistics, and deduplication/correlation." That objective language directly supports this answer.
Why the other options are not best:
A narrows only one rule window and does not systematically identify trends across multiple event types. B may reduce volume, but reduction alone does not reveal trends. D is risky because noisy rules might still provide useful context, and disabling them based only on total daily alerts can hide meaningful multi-event patterns. The practical, operational ap proach is to correlate records by a shared field such as source/user across time batches so repeated suspicious behavior stands out.
References:
CompTIA SecurityX official exam objectives summary, Security Operations domain including trend analysis and correlation .
CompTIA SecurityX CAS-005 exam objectives PDF mirror with the same operational analysis themes.
NEW QUESTION # 266
A social media company wants to change encryption ciphers after identifying weaknesses in the implementation of the existing ciphers. The company needs the new ciphers to meet the following requirements:
- Utilize less RAM than competing ciphers.
- Be more CPU-efficient than previous ciphers.
- Require customers to use TLS 1.3 while broadcasting video or audio.
Which of the following is the best choice for the social media company?
Answer: C
NEW QUESTION # 267
A systems engineer is configuring a system baseline for servers that will provide email services. As part of the architecture design, the engineer needs to improve performance of the systems by using an access vector cache, facilitating mandatory access control and protecting against:
* Unauthorized reading and modification of data and programs
* Bypassing application security mechanisms
* Privilege escalation
* interference with other processes
Which of the following is the most appropriate for the engineer to deploy?
Answer: A
Explanation:
The most appropriate solution for the systems engineer to deploy is SELinux (Security-Enhanced Linux).
Here's why:
* Mandatory Access Control (MAC): SELinux enforces MAC policies, ensuring that only authorized users and processes can access specific resources. This helps in preventing unauthorized reading and modification of data and programs.
* Access Vector Cache: SELinux utilizes an access vector cache (AVC) to improve performance. The AVC caches access decisions, reducing the need for repetitive policy lookups and thus improving system efficiency.
* Security Mechanisms: SELinux provides a robust framework to enforce security policies and prevent bypassing of application security mechanisms. It controls access based on defined policies, ensuring that security measures are consistently applied.
* Privilege Escalation and Process Interference: SELinux limits the ability of processes to escalate privileges and interfere with each other by enforcing strict access controls. This containment helps in isolating processes and minimizing the risk of privilege escalation attacks.
* References:
* CompTIA Security+ SY0-601 Study Guide by Mike Chapple and David Seidl
* NSA's Guide to the Secure Configuration of Red Hat Enterprise Linux 5 (SELinux)
* NIST Special Publication 800-53: Security and Privacy Controls for Information Systems and Organizations
NEW QUESTION # 268
A vulnerability can on a web server identified the following:
Which of the following actions would most likely eliminate on path decryption attacks? (Select two).
Answer: A,B
Explanation:
On-path decryption attacks, such as BEAST (Browser Exploit Against SSL/TLS) and other related vulnerabilities, often exploit weaknesses in the implementation of CBC (Cipher Block Chaining) mode. To mitigate these attacks, the following actions are recommended:
Removing support for CBC-based key exchange and signing algorithms: CBC mode is vulnerable to certain attacks like BEAST. By removing support for CBC-based ciphers, you can eliminate one of the primary vectors for these attacks. Instead, use modern cipher modes like GCM (Galois/Counter Mode) which offer better security properties.
Adding TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA256: This cipher suite uses Elliptic Curve Diffie-Hellman Ephemeral (ECDHE) for key exchange, which provides perfect forward secrecy. It also uses AES in GCM mode, which is not susceptible to the same attacks as CBC.
SHA-256 is a strong hash function that ensures data integrity.
NEW QUESTION # 269
A security engineer wants to enhance the security posture of end-user systems in a Zero Trust environment. Given the following requirements:
. Reduce the ability for potentially compromised endpoints to contact command-and-control infrastructure.
. Track the requests that the malware makes to the IPs.
. Avoid the download of additional payloads.
Which of the following should the engineer deploy to meet these requirements?
Answer: D
NEW QUESTION # 270
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