NCP-AII Question 80
Select 3You are setting up a new NVIDIA DGX system in your data center, which requires high-speed network connectivity for AI workloads. The system requires a 100GbE connection to the network switch. Which of the following cable types and transceivers would be most appropriate for this setup?
- A
QSFP28 transceiver with an OM4 multimode fiber cable
- B
QSFP+ transceiver with a Cat6 copper cable
- C
QSFP28 DAC (Direct Attach Copper) cable
- D
SFP28 transceiver with a single-mode fiber cable
- E
QSFP28 transceiver with a single-mode fiber cable
Show answer and explanation
Correct answers: A, C, E
Explanation
NVIDIA DGX systems require high-speed networking, such as 100GbE, to handle the demands of AI workloads. QSFP28 is the standard transceiver for 100GbE connections, and the choice of cable depends on the distance: OM4 multimode fiber is used for short distances, single-mode fiber for longer distances, and DAC cables for cost-effective short-range connections. Options using older transceivers like QSFP+ or SFP28 do not meet the 100GbE requirement.
- A. Correct.
Correct. A QSFP28 transceiver paired with an OM4 multimode fiber cable is suitable for 100GbE connections over short distances in a data center.
- B. Incorrect.
Incorrect. QSFP+ transceivers only support up to 40GbE, which does not meet the 100GbE requirement. Additionally, Cat6 cables are not used for such high-speed connections.
- C. Correct.
Correct. QSFP28 DAC cables are a cost-effective solution for short-range 100GbE connections, commonly used in data centers.
- D. Incorrect.
Incorrect. SFP28 transceivers are designed for up to 25GbE connections and are not suitable for the 100GbE requirement in this scenario.
- E. Correct.
Correct. A QSFP28 transceiver with a single-mode fiber cable is appropriate for 100GbE connections over longer distances.