CompTIA Updated CAS-004 Exam Questions and Answers by pixie

The protocol described is Modbus, which is a commonly used industrial protocol that lacks built-in authentication and security features. Modbus operates in a client/server model and can be implemented over RTU (Remote Terminal Unit) or TCP/IP for communication between devices. The other protocols mentioned either have different characteristics or are used in different contexts (such as Profinet for industrial automation, Zigbee for wireless IoT devices, and Z-Wave for home automation). CASP+ identifies Modbus as a critical protocol in industrial environments that lacks security and requires additional protective measures.

Comprehensive and Detailed Step by Step Explanation:

Due diligenceinvolves researching and understanding regulatory requirements (e.g., HIPAA) to ensure compliance for handling sensitive data like personal health information.

Data retentionrefers to how long data is stored, not compliance research.

Data classificationorganizes data by sensitivity but is not specific to compliance research.

Reference frameworksprovide guidelines for implementation but are not directly about research.

Tokenization is the process of replacing sensitive data, like credit card numbers, with unique identification symbols (tokens) that retain all the essential information without compromising its security. This method is compliant with PCI DSS requirements as it ensures that actual credit card data is not stored or processed, thus minimizing the risk of data breaches. Tokenization also maintains confidentiality even if part of the data handling system is compromised, as the tokens do not hold any exploitable data.

Single-tenant architectures provide a dedicated environment for each client, which enhances data privacy since the resources are not shared with other tenants. This isolation minimizes the risk of data leakage or interference from other tenants, offering a high degree of privacy. Additionally, single-tenancy allows for full control over the database environment, including customization options tailored to specific security requirements or compliance needs, which is not always possible in a multi-tenant architecture.