The CS0-004 Certification Exam is one of the top-rated and career-oriented certificates that are designed to validate an CompTIA professional's skills and knowledge level. These CompTIA Cybersecurity Analyst (CySA+) Certification Exam (CS0-004) practice questions have been inspiring those who want to prove their expertise with the industrial-recognized credential. By cracking it you can gain several personal and professional benefits.
| Section | Weight | Objectives |
|---|---|---|
| Security Operations | 34% | - Threat Intelligence and Hunting
|
| Incident Response and Management | 24% | - Incident Investigation
|
| Vulnerability Management | 26% | - Vulnerability Response
|
| Reporting and Communication | 16% | - Communication
|
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NEW QUESTION # 92
An analyst needs to perform a baseline security evaluation of the company's cloud infrastructure.
Which of the following tools is most appropriate for this task?
Answer: B
Explanation:
ScoutSuite is a cloud security auditing tool that evaluates cloud configurations and identifies security risks across cloud environments. OpenVAS scans vulnerabilities, Nikto scans web servers, and Metasploit is primarily used for exploitation testing.
NEW QUESTION # 93
An application security analyst needs to test a web application for input validation vulnerabilities.
The analyst does not have the source code and does not have documentation for the APIs. Which of the following techniques will best aid the analyst in vulnerability testing?
Answer: B
Explanation:
Fuzzing is the most effective technique when source code and API documentation are unavailable.
By sending large volumes of unexpected, random, or malformed inputs to the web application, the analyst can uncover input validation flaws based solely on observed behavior.
NEW QUESTION # 94
An analyst prepares an after action report following an incident in which multiple systems were compromised over several days.
The analyst provides raw event logs from each compromised system in the report and determines that a patient-zero system cannot be found.
Which of the following should the analyst do to determine the patient-zero system?
Answer: B
Explanation:
The analyst must construct an accurate incident timeline . Patient zero is the earliest compromised system from which subsequent malicious activity originated or propagated. Determining it requires ordering events chronologically across all affected hosts and correlating authentication activity, process execution, network connections, malware creation times, lateral movement, and other evidence.
Raw logs alone do not communicate this sequence effectively. Logs from different systems must first use reliable timestamps and then be normalized and correlated. Once events are ordered, the analyst can work backward from known compromises to determine which host displayed the earliest credible signs of intrusion and whether subsequent systems were reached from that host.
Enabling additional monitoring helps detect future activity but does not reconstruct historical sequence by itself. Isolation is necessary during containment but does not establish which system was initially compromised. Shift-handoff improvements are useful organizationally but do not answer the forensic question. Malware composition analysis may identify relationships between samples, but it does not establish system-level chronology.
NIST's incident-response guidance emphasizes analysis, documentation, root-cause understanding, and after- action reporting as inputs to continuous improvement.
Study Guide Reference: Incident Response and Management # Timeline Analysis # Event Correlation # Patient Zero # Root Cause Analysis # After-Action Review.
NEW QUESTION # 95
Which of the following contains stakeholder contact information for incident response reporting?
Answer: B
Explanation:
The communication plan is the appropriate document because it establishes who must be contacted during an incident, how communications should occur, which channels are authorized, and how information should be escalated to internal and external stakeholders.
Incident-response communications may involve security personnel, executive leadership, legal counsel, privacy teams, public relations, human resources, business owners, vendors, regulators, law enforcement, customers, and other parties depending on incident severity. NIST's incident-response guidance emphasizes coordination with relevant stakeholders as part of an effective response capability. A communication plan operationalizes that requirement by maintaining contact information, responsibilities, escalation paths, notification requirements, and approved communication methods.
An organization chart identifies reporting relationships but may not contain emergency contact details, alternate channels, external contacts, or escalation procedures. A previous incident report documents a historical event and should not be treated as the authoritative contact source. Standard operating procedures can describe technical or administrative steps, but stakeholder communications are more appropriately centralized in the incident communication plan.
Maintaining this information in advance is critical because incident response frequently occurs under time pressure and may involve unavailable or compromised normal communication systems.
Study Guide Reference: Reporting and Communication # Communication Plan # Stakeholder Contacts # Escalation Paths # Internal/External Notifications # Out-of-Band Communications.
NEW QUESTION # 96
There is an alert coming from the security information and event management system.
Which of the following is the first task an analyst should complete?
Answer: D
Explanation:
A SIEM alert is an indication requiring validation; it is not automatically a confirmed security incident. The analyst must therefore begin with triage . Triage establishes whether the activity is legitimate or malicious, determines the affected systems or accounts, evaluates severity and business impact, and establishes the appropriate investigative and escalation path.
Typical triage activities include reviewing the underlying events, checking source and destination information, identifying affected assets, correlating supporting telemetry, evaluating detection confidence, examining threat intelligence, and determining whether the alert represents a true positive. Only after this assessment can the incident be assigned an appropriate priority and routed to the correct responders.
Contacting an incident coordinator before establishing whether the alert represents meaningful risk may create unnecessary escalation. Recovery activities occur substantially later, after detection, analysis, containment, and eradication activities have established what happened and controlled the threat. Escalating directly to the help desk is similarly premature and may be inappropriate for a security event.
NIST's current incident-response model places detection and analysis before response and recovery actions and emphasizes determining event characteristics so appropriate response actions can follow.
Study Guide Reference: Incident Response and Management # Detection # Alert Validation # Triage # Analysis # Severity Determination # Escalation.
NEW QUESTION # 97
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