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?
A. Hybrid (QSFP-to-CX4)
B. IB (Cx4-to-CX4)
C. QSFP (QSFP-to-QSFP)
D. Ethernet (DB45 CAT-6)