Which statement accurately differentiates 7-Mode from CDOT?

• A. CDOT is standalone; 7-Mode is cluster-based.
• B. CDOT uses a single node; 7-Mode uses multiple.
• C. CDOT requires IPspaces; 7-Mode does not.
• D. 7-Mode is a standalone, single-controller architecture; CDOT is cluster-based, scalable across multiple nodes with unified management.

Answer: (D)

7-Mode operates as a standalone, single-controller system, while CDOT is designed as a cluster-based solution that scales across multiple nodes with a single, unified management plane. In 7-Mode, each system runs independently and you grow capacity by adding separate standalone systems. In CDOT, multiple controllers form one cluster, sharing a single namespace and management, so you can add nodes to increase capacity and performance without managing separate islands of data. This unified, scalable approach is what sets CDOT apart from the single-node, standalone nature of 7-Mode.

The other statements mix up these fundamentals. CDOT is not inherently single-node, and its strength lies in clustering across nodes. IPspaces exist in both contexts but are not a requirement that defines the difference between the two.