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Dell-EMC

E20-559 · Question #3

A storage administrator added three X410 nodes to an existing cluster with three X400 nodes. However, the administrator did not realize that a decision was made to update the InfiniBand back-end…

The correct answer is A. Hybrid (QSFP-to-CX4). See the full explanation below for the reasoning.

Question

A storage administrator added three X410 nodes to an existing cluster with three X400 nodes. However, the administrator did not realize that a decision was made to update the InfiniBand back-end switches from DDR to QDR. Which type of cables must be used to connect the X400 nodes to the new switches?

Options

  • AHybrid (QSFP-to-CX4)
  • BIB (Cx4-to-CX4)
  • CQSFP (QSFP-to-QSFP)
  • DEthernet (DB45 CAT-6)

How the community answered

(28 responses)
  • A
    71% (20)
  • B
    18% (5)
  • C
    7% (2)
  • D
    4% (1)

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