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| Certification Vendor: | CompTIA |
|---|---|
| Exam Name: | CompTIA Cybersecurity Analyst (CySA+) Certification Exam CS0-003 |
| Exam Number: | CS0-003 |
| Available Languages: | Portuguese, Japanese, English, Thai |
| Certificate Validity Period: | 3 years |
| Real Exam Qty: | Up to 85 |
| Exam Duration: | 165 minutes |
| Passing Score: | 750 (on a scale of 100-900) |
| Exam Price: | USD 392 (may vary by region/tax) |
| Exam Format: | Multiple-choice, Performance-based questions |
| Related Certifications: | CompTIA PenTest+ CompTIA Security+ CompTIA Network+ |
| Recommended Training: | Cybrary CySA+ Training CompTIA CertMaster Learn CySA+ |
| Exam Registration: | Pearson VUE Exam Registration CompTIA Certification Portal |
| Sample Questions: | CompTIA CS0-003 Sample Questions |
| Exam Way: | Online proctored or in-person at Pearson VUE testing centers |
| Pre Condition: | Recommended: CompTIA Security+ or equivalent knowledge in networking and security fundamentals |
| Official Syllabus URL: | https://www.comptia.org/certifications/cybersecurity-analyst |
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質問 # 358
A company has decided to expose several systems to the internet, The systems are currently available internally only. A security analyst is using a subset of CVSS3.1 exploitability metrics to prioritize the vulnerabilities that would be the most exploitable when the systems are exposed to the internet. The systems and the vulnerabilities are shown below:
Which of the following systems should be prioritized for patching?
正解：A
解説：
The system "blane" with the vulnerability name "snakedoctor" should be prioritized for patching as it has a network attack vector (AV:N), low attack complexity (AC:L), and high availability (A:H). These metrics indicate that it would be relatively easy to exploit this vulnerability over the internet, and the system is highly available. References: According to the CVSS v3.1 Specification Document, the exploitability metrics for CVSS are Attack Vector, Attack Complexity, Privileges Required, User Interaction, and Scope. These metrics measure how the vulnerability is accessed, the complexity of the attack, and the level of interaction and privileges required to exploit the vulnerability. The image shows a table with the values of these metrics for each system and vulnerability. Based on these values, the system "blane" has the highest exploitability score, as it has the most favorable conditions for an attacker. The other systems have either a lower attack vector, higher attack complexity, or lower availability, which make them less exploitable. Therefore, the system
"blane" should be patched first.
質問 # 359
While configuring a SIEM for an organization, a security analyst is having difficulty correlating incidents across different systems. Which of the following should be checked first?
正解：A
解説：
The NTP configuration on each system should be checked first, as it is essential for ensuring accurate and consistent time stamps across different systems. NTP is the Network Time Protocol, which is used to synchronize the clocks of computers over a network. NTP uses a hierarchical system of time sources, where each level is assigned a stratum number. The most accurate time sources, such as atomic clocks or GPS receivers, are at stratum 0, and the devices that synchronize with them are at stratum 1, and so on. NTP clients can query multiple NTP servers and use algorithms to select the best time source and adjust their clocks accordingly. If the NTP configuration is not consistent or correct on each system, the time stamps of the logs and events may differ, making it difficult to correlate incidents across different systems. This can affect the security analysis and correlation of events, as well as the compliance and auditing of the network.
質問 # 360
Which of the following is the first step that should be performed when establishing a disaster recovery plan?
正解：D
解説：
The first step that should be performed when establishing a disaster recovery plan is to agree on the goals and objectives of the plan. The goals and objectives of the plan should define what the plan aims to achieve, such as minimizing downtime, restoring critical functions, ensuring data integrity, or meeting compliance requirements. The goals and objectives of the plan should also be aligned with the business needs and priorities of the organization and be measurable and achievable.
質問 # 361
An analyst is conducting routine vulnerability assessments on the company infrastructure. When performing these scans, a business-critical server crashes, and the cause is traced back to the vulnerability scanner. Which of the following is the cause of this issue?
正解：C
解説：
The scanner is running in active mode, which is the cause of this issue. Active mode is a type of vulnerability scanning that sends probes or requests to the target systems to test their responses and identify potential vulnerabilities. Active mode can provide more accurate and comprehensive results, but it can also cause more network traffic, performance degradation, or system instability.
In some cases, active mode can trigger denial-of-service (DoS) conditions or crash the target systems, especially if they are not configured to handle the scanning requests or if they have underlying vulnerabilities that can be exploited by the scanner. Therefore, the analyst should use caution when performing active mode scanning, and avoid scanning business-critical or sensitive systems without proper authorization and preparation.
質問 # 362
A manufacturer has hired a third-party consultant to assess the security of an OT network that includes both fragile and legacy equipment. Which of the following must be considered to ensure the consultant does no harm to operations?
正解：A
解説：
In environments with fragile and legacy equipment, passive scanning is preferred to prevent any potential disruptions that active scanning might cause.
When assessing the security of an Operational Technology (OT) network, especially one with fragile and legacy equipment, it's crucial to use passive instead of active vulnerability scans.
Active scanning can sometimes disrupt the operation of sensitive or older equipment. Passive scanning listens to network traffic without sending probing requests, thus minimizing the risk of disruption.
質問 # 363
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