NVMe over Fabric supports mapping NVMe commands and data to multiple Fabric transmission links. Which of the following link types can be supported? (Multiple choice)

Question

Options

• ARoCE v2
• BInfiniBand
• CTCP
• DFC

• A
  69% (25)
• C
  31% (11)

Explanation

NVMe over Fabrics (NVMe-oF) was designed to extend NVMe's low-latency protocol across network fabrics, and its original specification defined transport bindings for RDMA-based links and Fibre Channel. RoCE v2 (A) and InfiniBand (B) are both RDMA-capable transports explicitly supported in the NVMe-oF specification, providing the high-bandwidth, low-latency characteristics NVMe demands. Fibre Channel (D) is supported through the NVMe/FC standard, which encapsulates NVMe commands within FC frames - making it a natural fit for storage networks already running FC infrastructure.

TCP (C) is the distractor: while NVMe/TCP was later ratified as an extension to NVMe-oF 1.1, it was not part of the original NVMe-oF specification, which focused on RDMA transports and FC. Exam questions at this level typically test the foundational NVMe-oF transport types, where TCP is excluded.

Memory tip: Think "RIF" - RDMA + InfiniBand + FC are the core NVMe-oF fabrics. Both RoCE v2 and InfiniBand are RDMA variants, so if you remember RDMA and FC, you cover all three correct answers. TCP is the "odd one out" because it lacks native RDMA semantics and was bolted on later.

No community discussion yet for this question.