NCP-AII Question 78
Select 2You are configuring a new NVIDIA DGX system in your data center. The system requires high-speed connectivity to support distributed AI training workloads. Which of the following cable types and transceivers would be most appropriate to connect the DGX system to a 100GbE-capable network switch?
- A
QSFP28 transceiver with an active optical cable (AOC)
- B
SFP+ transceiver with a Cat6 Ethernet cable
- C
QSFP28 transceiver with a direct attach copper (DAC) cable
- D
RJ45 connector with a Cat5 Ethernet cable
- E
QSFP+ transceiver with an OM3 fiber cable
Show answer and explanation
Correct answers: A, C
Explanation
The NVIDIA DGX system requires high-speed 100GbE connectivity to handle the demands of distributed AI training workloads. QSFP28 transceivers are specifically designed for 100GbE connections. Active optical cables (AOCs) are ideal for longer distances, while direct attach copper (DAC) cables are cost-effective for shorter distances. Other options, such as SFP+ and RJ45 with Cat5 cables, do not meet the 100GbE speed requirement and are therefore unsuitable for this application.
- A. Correct.
QSFP28 transceivers are designed for high-speed 100GbE connections, and active optical cables (AOCs) are well-suited for longer distances in data centers.
- B. Incorrect.
SFP+ transceivers are limited to 10GbE speeds and are not appropriate for 100GbE connections required by the DGX system.
- C. Correct.
QSFP28 transceivers with DAC cables provide a cost-effective option for 100GbE connectivity over short distances, making them suitable for NVIDIA DGX systems in rack-based setups.
- D. Incorrect.
RJ45 connectors with Cat5 cables are limited to much lower speeds (up to 1GbE or 100MbE), which is insufficient for the high-speed demands of AI workloads.
- E. Incorrect.
QSFP+ transceivers are limited to 40GbE speeds and are not suitable for the 100GbE connectivity required by the DGX system.