CS0-003 Practice Test 33 — 15 Questions

Question 1

A security analyst is prioritizing vulnerabilities for remediation. Which TWO factors should be considered HIGHEST when determining prioritization? (Choose two.)

Accepted Answer

CVSS base score. The CVSS base score provides a standardized, quantitative measure of a vulnerability's severity based on intrinsic characteristics like attack vector and complexity. Prioritizing by CVSS score ensures that remediation efforts focus on vulnerabilities with the highest potential impact, aligning with industry best practices for risk-based vulnerability management.

Answer

Number of false positives associated with the scan

Answer

System owner's preference

Answer

Age of the vulnerability

Question 2

Match each vulnerability scanning concept to its definition.

Accepted Answer

True Positive: Alert correctly identifies a real vulnerability. Understanding these four concepts is critical for interpreting scan results correctly. True positives and true negatives are desirable outcomes, while false positives and false negatives represent errors. Common confusions include swapping true/false positives and negatives, as shown in the distractors.

Answer

True Positive: Alert incorrectly indicates a vulnerability that does not exist

Answer

False Negative: No alert when there is no vulnerability

Question 3

An organization has a risk acceptance process for vulnerabilities that cannot be remediated immediately. Which of the following should be documented in the risk acceptance paperwork?

Accepted Answer

Compensating controls, business justification, and expiration date. Risk acceptance documentation should include compensating controls, business justification, and an expiration date or review period.

Answer

The name of the person who discovered the vulnerability

Answer

The patch details and installation instructions

Answer

The CVSS score and exploitability

Question 4

An analyst is reviewing scan results and finds that a critical vulnerability is present on 50 workstations. The vendor has released a patch, but the IT team is concerned about potential compatibility issues. Which of the following should the analyst recommend?

Accepted Answer

Test the patch on a subset before full deployment. The IT team's concern about compatibility issues necessitates a controlled rollout. Testing the patch on a subset of workstations allows the analyst to validate that the patch does not break critical business applications or system functionality before full deployment, aligning with the vulnerability management principle of staged patching to minimize operational risk.

Answer

Remove the vulnerable software

Answer

Apply a workaround from the vendor

Answer

Deploy the patch to all workstations immediately

Question 5

During which phase of the NIST SP 800-61 incident response lifecycle would an organization conduct a lessons learned meeting?

Accepted Answer

Post-Incident Activity. The post-incident activity phase includes lessons learned, root cause analysis, and improvement actions.

Answer

Containment, Eradication, and Recovery

Answer

Detection and Analysis

Answer

Preparation

Question 6

A security analyst needs to communicate the business impact of a newly discovered critical vulnerability to the executive team. Which of the following is the BEST approach?

Accepted Answer

Explain the vulnerability in layman's terms and estimate potential financial loss.. Translating technical risk into business terms (financial, reputational, regulatory) helps executives understand the impact and make informed decisions.

Answer

Send the raw vulnerability scan report.

Answer

Recommend immediate patching without further context.

Answer

Provide a detailed CVSS score and exploit code.

Question 7

Which of the following is an example of a behavioral indicator of compromise (IOC) observed during dynamic malware analysis?

Accepted Answer

Outbound network connection to a known malicious IP. Dynamic analysis monitors behavior such as network connections, file system changes, and process creation.

Answer

PE section names

Answer

File hash

Answer

Domain name

Question 8

A cybersecurity analyst needs to communicate the risk of a newly discovered vulnerability in a legacy system to the executive leadership. Which approach best translates the technical risk into business risk?

Accepted Answer

Explain the vulnerability's potential impact on revenue, customer trust, and compliance penalties. Executives care about business impact. Relating the vulnerability to potential financial loss, reputational damage, or regulatory penalties is the most effective way to communicate risk.

Answer

Provide the CVSS score and technical exploit details

Answer

Recommend immediate patching without further justification

Answer

Describe the attack vector and required privileges

Question 9

A vulnerability report includes a risk acceptance section. Which of the following scenarios is most appropriate to include in this section?

Accepted Answer

A medium-severity vulnerability with a compensating control that reduces risk to acceptable levels. Risk acceptance is documented when the organization decides not to remediate a vulnerability due to compensating controls or low risk.

Answer

A vulnerability that has been exploited in the wild

Answer

A critical vulnerability that has been patched

Answer

All open vulnerabilities regardless of severity

Question 10

During a vulnerability scan, an analyst identifies a plugin that reports a vulnerability with a CVSS v3.1 base score of 7.5. The vector string includes AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H. Which of the following is the primary impact of this vulnerability?

Accepted Answer

Availability. The CIA impact ratings show A:H (Availability High), meaning the vulnerability primarily impacts availability. C:N and I:N indicate no impact on confidentiality or integrity.

Answer

Integrity

Answer

Scope change

Answer

Confidentiality

Question 11

An analyst runs a YARA rule against a set of files and gets a hit. The rule was written to detect a specific malware family. What is the PRIMARY purpose of using YARA rules in this context?

Accepted Answer

To identify files that match known malware characteristics. YARA is a pattern-matching tool used to identify and classify malware samples based on textual or binary patterns.

Answer

To sandbox the malware for dynamic analysis

Answer

To verify the hash of the malware sample

Answer

To extract strings from the malware

Question 12

An analyst is investigating a possible data exfiltration incident. The analyst has acquired a memory dump from the compromised system. Which of the following would be the BEST approach to extract evidence of exfiltration?

Accepted Answer

Using a memory analysis framework like Volatility to analyze network connections and process memory. Memory analysis tools like Volatility can extract network connections, process memory, and other artifacts that may show exfiltration activity.

Answer

Calculating the MD5 hash of the memory dump and comparing it to known good hashes

Answer

Searching the memory dump for strings containing 'password'

Answer

Rebooting the system and capturing a new memory dump

Question 13

After containing a security incident, the incident response team conducts a root cause analysis. Which of the following is the PRIMARY purpose of this activity?

Accepted Answer

To identify the initial attack vector. Root cause analysis aims to identify the underlying cause of the incident to prevent recurrence. It is a key part of post-incident activity.

Answer

To calculate the financial loss

Answer

To document the timeline

Answer

To assign blame to individuals

Question 14

A SOC analyst receives a file from an unknown source via email. The analyst wants to analyze the file without executing it to determine its functionality. Which type of analysis should be performed?

Accepted Answer

Static analysis.. Static analysis involves examining a file's code, structure, and metadata without executing it, making it the correct choice for determining functionality while avoiding execution risks. Techniques include inspecting strings, headers, and disassembled code to identify malicious indicators like embedded URLs or API calls.

Answer

Behavioral analysis.

Answer

Memory analysis.

Answer

Dynamic analysis.

Question 15

A security analyst is triaging a SIEM alert for 'Multiple failed logins followed by a successful login from a remote IP'. The successful login occurs after 10 failed attempts. What is the most likely classification?

Accepted Answer

True positive for a brute-force attack. The pattern of multiple failures followed by a success strongly indicates a successful brute-force attack, which is a true positive.

Answer

False positive due to a misconfigured application

Answer

False positive due to user error

Answer

True positive for a password spraying attack