212-82 Exam Dumps and Practice Questions

The correct answer is B, as it describes the information security element that was described in the above scenario. Non-repudiation is an information security element that ensures that a party cannot deny sending or receiving a message or performing an action. In the above scenario, non-repudiation was described, as Kayden could not deny company's message, and company could not deny Kayden's signature. Option A is incorrect, as it does not describe the information security element that was described in the above scenario. Availability is an information security element that ensures that authorized users can access and use information and resources when needed. In the above scenario, availability was not described, as there was no mention of access or use of information and resources. Option C is incorrect, as it does not describe the information security element that was described in the above scenario. Integrity is an information security element that ensures that information and resources are accurate and complete and have not been modified by unauthorized parties. In the above scenario, integrity was not described, as there was no mention of accuracy or completeness of information and resources. Option D is incorrect, as it does not describe the information security element that was described in the above scenario. Confidentiality is an information security element that ensures that information and resources are protected from unauthorized access and disclosure. In the above scenario, confidentiality was not described, as there was no mention of protection or disclosure of information and resources.

The use of authorized RTU and PLC commands is the security control implemented by Hayes in the above scenario. RTU (Remote Terminal Unit) and PLC (Programmable Logic Controller) are devices that control and monitor industrial processes, such as power generation, water treatment, oil and gas production, etc. RTU and PLC commands are instructions that are sent from a master station to a slave station to perform certain actions or request certain data. The use of authorized RTU and PLC commands is a security control that fortifies the IDMZ (Industrial Demilitarized Zone) against cyber-attacks by ensuring that only valid and authenticated commands are executed by the RTU and PLC devices. Point-to-point communication is a communication method that establishes a direct connection between two endpoints. MAC authentication is an authentication method that verifies the MAC (Media Access Control) address of a device before granting access to a network. Anti-DoS solution is a security solution that protects a network from DoS (Denial-of-Service) attacks by filtering or blocking malicious traffic.

Content-based signature analysis is the attack signature analysis technique employed by Finley in this scenario. Content-based signature analysis is a technique that captures and analyzes a single network packet to determine whether the signature included malicious patterns. Content-based signature analysis can be used to detect known attacks, such as buffer overflows, SQL injections, or cross-site scripting2.

Definition of Zero-Day Vulnerability:

A zero-day vulnerability is a flaw in software that is unknown to the vendor and thus has no patch available. Exploiting such a vulnerability allows attackers to infiltrate systems without detection.

Advanced Persistent Threat (APT) Characteristics:

APT groups are known for their sophisticated tactics, often leveraging zero-day vulnerabilities to gain initial access. These attacks are stealthy and can remain undetected for extended periods.

Initial Access Vector:

By exploiting a zero-day vulnerability in a developer's application, attackers can bypass traditional security defenses and establish a foothold within the target network.

Impact of Exploitation:

Once inside, attackers can move laterally, escalate privileges, and extract sensitive data. The use of a zero-day makes detection and remediation challenging.

The sophistication and stealth of the APT attack described align with the exploitation of a zero-day vulnerability, making it the primary method used to initiate the attack.

Engaging a cloud-based data storage provider allows NovusCorp to manage the sudden influx of data requests without overloading the secondary data center. Cloud providers can quickly scale resources to meet demand.

Business Continuity:

Cloud services provide a flexible and reliable solution to maintain business continuity. They offer robust disaster recovery options and can be integrated with existing DR plans.

Temporary Overflow Solution:

Using cloud storage as a temporary solution ensures that critical operations continue without interruption while the primary data center is restored.

Cost and Time Efficiency:

Cloud-based solutions can be implemented quickly and cost-effectively compared to upgrading the secondary data center's infrastructure or other complex solutions.

Given the unexpected load on the secondary data center, engaging a cloud-based data storage provider is the most effective immediate action to ensure business continuity.