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| Section | Weight | Objectives |
|---|---|---|
| Incident Response and Management | 24% | - Incident Handling and Investigation
|
| Reporting and Communication | 16% | - Documentation and Stakeholder Communication
|
| Security Operations | 34% | - Security Monitoring and Analysis
|
| Vulnerability Management | 26% | - Vulnerability Assessment and Remediation
|
CompTIA学習教材は、学習者が製品を使用するのに不便がないように役立つ複数の機能と思いやりのあるサービスを提供します。 CS0-004学習教材を購入し、しばらくの間辛抱強く学習すれば、わずかな失敗確率でCS0-004テストに合格することを保証できます。私たちの製品の価格はあなたが購入できる範囲内であり、私たちの学習教材を使用した後、あなたは確かに製品の価値があなたが支払う金額をはるかに超えていると感じるでしょう。 CS0-004学習ガイドを選択することは、CompTIA Cybersecurity Analyst (CySA+) Certification Exam成功と完璧なサービスを選択することと同じです。
質問 # 82
A security analyst reruns infrastructure as code (IaC) to tear down and rebuild a new environment after a ransomware attack.
Which of the following describes this phase?
正解：C
解説：
Rebuilding the environment from infrastructure-as-code definitions is a recovery activity because the organization is restoring trusted operational capability after the ransomware incident has been controlled. IaC provides a particularly effective recovery mechanism because infrastructure can be reconstructed according to predefined, version-controlled configurations instead of attempting to repair every potentially compromised component manually.
During detection and analysis, responders establish that malicious activity occurred and determine its scope.
Containment limits additional damage or spread. Eradication removes malicious artifacts, persistence, compromised credentials, and the underlying causes of the incident. Recovery then restores affected systems and services to normal operation while ensuring they are returned in a trustworthy state.
NIST defines recovery as the restoration of assets and operations affected by cybersecurity incidents and emphasizes verifying restored assets before normal operations resume. Tearing down potentially compromised infrastructure and deploying fresh resources from controlled IaC templates directly fulfills that purpose.
Post-incident activities occur after operational restoration and focus on lessons learned, reporting, process improvement, and corrective recommendations.
Study Guide Reference: Incident Response and Management # Containment # Eradication # Recovery # Infrastructure as Code # Rebuilding from Known-Good Configurations # Validation.
質問 # 83
A vulnerability analyst must perform a security assessment on an edge device running various services.
The analyst runs an Nmap port scan and sees the following output:
Which of the following should the analyst do next to validate the discovered remote access service is secure?
正解：D
解説：
The relevant follow-up is to assess the security configuration of the discovered VPN/IKE remote-access service , making option C the appropriate examination answer. Internet Key Exchange supports different negotiation modes, and Nmap includes specific capabilities for assessing IKE services. Nmap's ike-version script probes UDP port 500 and tests both Main and Aggressive Mode while identifying supported transforms and vendor characteristics.
Nmap's IKE library likewise explicitly supports generating either Main Mode or Aggressive Mode requests, enabling analysts to characterize the configuration of an exposed VPN endpoint. The security concern traditionally associated with this distinction is that Aggressive Mode exposes more negotiation information and has historically enabled offline attacks in some pre-shared-key configurations; Main Mode provides stronger identity protection during IKEv1 negotiation.
The other choices do not validate the security of the remote-access service. A web-server certificate is relevant to TLS-enabled HTTP services, BGP route publication relates to network routing, and ICMP ping only demonstrates basic reachability.
The analyst should therefore move from port discovery to service-specific configuration validation .
Study Guide Reference: Vulnerability Management # Nmap # Service Enumeration # VPN/IKE # UDP 500
# Main Mode/Aggressive Mode # Configuration Validation.
質問 # 84
A security analyst detects that a large amount of data is being exfiltrated. The data contains confidential customer information. Which of the following should be done first in this situation?
正解：B
解説：
When active data exfiltration involving confidential customer information is detected, the immediate priority is to initiate incident response procedures and contain the affected systems to stop further data loss. Containment helps limit the impact of the breach before moving on to stakeholder notifications, external communications, or law enforcement involvement.
質問 # 85
Hotspot Question
A systems administrator is reviewing the output of a vulnerability scan.
INSTRUCTIONS
Review the information in each tab.
Based on the organization's environment architecture and remediation standards, select the server to be patched within 14 days and select the appropriate technique and mitigation.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.
正解：
解説：
Explanation:
192.168.60.90 is an operations server with a CVSS score of 8.1, requiring remediation within 14 calendar days. Restricting the server to modern cipher suites directly mitigates the identified TLS downgrade vulnerability.
質問 # 86
A vendor releases details of a new vulnerability. When an analyst reviews the scheduled scans, no vulnerabilities are identified. The vulnerability is only discovered after a configuration change.
Which of the following scan types did the analyst configure?
正解：D
解説：
An agent-based scan relies on software installed directly on the endpoint to collect local system state and report vulnerability or configuration information to the management platform. Because the agent has local visibility, its findings can be influenced by endpoint configuration, agent policy, update state, privileges, enabled assessment modules, or configuration changes that determine what information is collected and evaluated.
The scenario indicates that regularly scheduled assessment activity initially failed to identify the newly disclosed vulnerability, but the condition became visible after a configuration change. Among the available choices, that behavior most strongly aligns with an agent-based assessment whose local collection or assessment configuration had to be updated before the vulnerability could be detected.
An external scan evaluates systems from outside the organizational boundary and focuses primarily on externally reachable services. A network scan examines hosts and services remotely and is governed mainly by network reachability and scanner capabilities. A credentialed scan authenticates into a system to obtain deeper visibility, but the defining characteristic in the question is the persistent endpoint-based assessment affected by configuration.
CySA+ vulnerability-management objectives distinguish assessment techniques by perspective, authentication level, deployment method, and resulting visibility. Analysts must understand why different scanning architectures can produce different findings.
Study Guide Reference: Vulnerability Management # Vulnerability Scanning Methods # Agent-Based Scanning # Network Scanning # Credentialed Scanning # Scan Configuration and Coverage.
質問 # 87
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