Complete CAS-004 CompTIA Materials

Galois/Counter Mode (GCM) is an AES mode of operation that provides both confidentiality and data integrity. It is well-suited for processing streams of data, making it ideal for streaming video services. GCM is known for its strong cryptographic security and good performance, which aligns with the legacy cipher's characteristics and the streaming service's requirements.

The data owner is best qualified to classify systems and data in accordance with external requirements. The data owner is responsible for determining how data should be classified based on its sensitivity, value, and regulatory requirements. They have the authority to decide on classification levels such as public, confidential, or secret, and ensure compliance with external standards. Other roles, like data custodians or processors, support the implementation of data management, but the data owner has the final responsibility for classification. CASP+ highlights the role of data owners in determining data classification and ensuring compliance with external requirements.

Theddtool creates a bit-for-bit copy of a hard drive, preserving its contents exactly as they are. This is essential for forensic analysis, as it ensures the integrity of evidence. This aligns with CASP+ objective 5.2, which emphasizes forensic tools and techniques for preserving and analyzing digital evidence.