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| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Incident Response and Management | 24% | - Incident Handling and Investigation
|
| Topic 2: Security Operations | 34% | - Security Monitoring and Analysis
|
| Topic 3: Reporting and Communication | 16% | - Documentation and Stakeholder Communication
|
| Topic 4: Vulnerability Management | 26% | - Vulnerability Assessment and Remediation
|
>> Valid CS0-004 Exam Question <<
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NEW QUESTION # 141
A new policy prohibits external access to database servers. A recent external port scan identified the following open Transmission Control Protocol (TCP) ports:
- 21
- 25
- 68
- 80
- 389
- 443
- 587
- 1514
- 3306
- 3389
- 8080
Which of the ports must be closed to be compliant with the new policy? (Choose two.)
Answer: C,E
Explanation:
Port 3306 is the default port used by MySQL database servers. Allowing external access to this port directly exposes the database service, which violates a policy that prohibits external access to database servers.
Port 3389 is used by Remote Desktop Protocol (RDP). External access through RDP allows direct administrative or user access to the server hosting the database, which effectively bypasses the restriction against external access to database servers and therefore must also be closed to comply with the policy.
NEW QUESTION # 142
An analyst receives an alert that a user clicked on a malicious link. The analyst verifies that the link is malicious and was intended to capture credentials. The analyst verifies that the user visited the website, but no evidence indicates that the credentials were used. The analyst recommends that the user take remedial training and closes the case.
Which of the following steps in the incident response process did the analyst neglect?
Answer: C
Explanation:
The analyst completed substantial analysis by validating the URL, confirming its credential-harvesting purpose, and establishing that the user accessed the malicious site. However, the investigation was closed without performing adequate containment . Even though there is no evidence that stolen credentials were subsequently used, the user's authentication material must be considered potentially exposed because the phishing site was specifically designed to collect credentials.
Containment should reduce the immediate opportunity for an attacker to exploit that exposure. Appropriate measures can include resetting the affected password, revoking active authentication sessions or tokens, temporarily restricting the account when warranted, blocking the malicious URL or domain, and checking the endpoint for additional malicious activity. The absence of observed credential misuse does not establish that credential capture did not occur.
Remedial training is valuable, but it is principally a corrective or post-incident measure and does not neutralize the immediate technical risk. Recovery would follow containment and eradication when affected services or systems require restoration.
NIST's current incident-response guidance emphasizes effective detection, response, and recovery actions to reduce incident impact rather than stopping after validation.
Study Guide Reference: Incident Response and Management # Incident Response Process # Analysis # Containment # Eradication # Recovery # Post-Incident Activities.
NEW QUESTION # 143
Which of the following is the term for a predefined set of automated actions that incident responders and SOC analysts can use to enhance operations?
Answer: B
Explanation:
Playbooks define predefined, often automated, response actions that incident responders and SOC analysts follow to standardize and enhance security operations.
NEW QUESTION # 144
A security analyst is scanning an ICS host (192.168.1.5) in an industrial plant for insecure ports while minimizing the impact to uptime or performance. Which of following commands should the analyst use to perform the task?
Answer: A
Explanation:
Industrial control systems require minimal impact scanning, so a very slow and cautious timing template is appropriate to avoid disrupting operations. Using a low timing setting reduces packet rate and network load, making it suitable for sensitive environments while still allowing port assessment.
NEW QUESTION # 145
Which of the following is the best strategy for prioritizing vulnerabilities for remediation?
Answer: C
Explanation:
Organizations establish vulnerability management procedures that define remediation timeframes based on risk levels, asset criticality, and business requirements. Prioritizing remediation according to these documented procedures ensures vulnerabilities are addressed consistently and in alignment with the organization's risk management strategy rather than relying solely on report order, descriptions, or CVE scores.
NEW QUESTION # 146
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