Helping Hand Questions for 312-40

Rufus has created a RAID 0 array, which is characterized by the following features:

• Performance: RAID 0 is known for its high performance in both read and write operations because it uses striping, where data is split evenly across two or more disks without parity information.
• No Overhead by Parity Control: RAID 0 does not use parity control, which means there is no redundancy in the data. This contributes to its high performance but also means there is no fault tolerance.
• Storage Capacity: The total storage capacity of a RAID 0 array is equal to the sum of all the disk capacities in the set, as there is no disk space used for redundancy.
• Lack of Fault Tolerance: RAID 0 is not fault-tolerant; if one disk fails, all data in the array is lost. Therefore, it is not recommended for critical data storage.
• Use Case: It is ideal for non-critical data that requires high-speed reading and writing, such as temporary files or cache data.

References:RAID 0 is often used to improve the performance of disk I/O (input/output) and is suitable for environments where speed is more critical than data redundancy. However, due to its lack of fault tolerance, it is not recommended for storing critical data that cannot be easily replaced or recovered.

The CSA CCM (Cloud Controls Matrix) Framework is a cybersecurity control framework for cloud computing, developed by the Cloud Security Alliance (CSA). It is designed to provide a structured and standardized set of security controls that help organizations assess the overall security posture of their cloud infrastructure and services.

Here’s how the CSA CCM Framework serves as a tool for cloud risk management:

• Comprehensive Controls: The CCM consists of 197 control objectives structured in 17 domains covering all key aspects of cloud technology.
• Risk Assessment: It can be used for the systematic assessment of a cloud implementation, providing guidance on which security controls should be implemented.
• Alignment with Standards: The controls framework is aligned with the CSA Security Guidance for Cloud Computing and other industry-accepted security standards and regulations.
• Shared Responsibility Model: The CCM clarifies the shared responsibility model between cloud service providers (CSPs) and customers (CSCs).
• Monitoring and Measurement: The CCM includes metrics and implementation guidelines that help define what should be measured and the acceptable variance for risks.

References:

• CSA’s official documentation on the Cloud Controls Matrix (CCM), which outlines its use as a tool for cloud risk management1.
• An article providing a checklist for CSA’s Cloud Controls Matrix v4, which discusses how it can be used for managing risk in cloud environments2.

• Disaster Recovery as a Service (DRaaS): DRaaS is a third-party service that provides organizations with a secondary site infrastructure, which employs cloud computing for application and data recovery from synchronous or asynchronous replication1.
• Fault Tolerance and Redundancy: A fault-tolerant disaster recovery site with fully redundant equipment ensures that all critical systems and components have backups ready to take over in case of failure1.
• Real-Time Data Synchronization: This feature ensures that data is continuously mirrored to the disaster recovery site, allowing for real-time recovery and zero data loss during failover1.
• Hot Site: A hot site is a fully operational offsite data center equipped with hardware and software, network connectivity, and real-time data synchronization. It is ready to assume operation at a moment’s notice, which aligns with the description provided1.
• Minimal Downtime: The use of a hot site allows for minimal downtime during a disaster, as the site is already running and can take over immediately without the need to set up or configure equipment1.

References:

• Flexential’s explanation of Disaster Recovery as a Service (DRaaS)1.