HPE6-A47 Exam - Question 26

Question

Refer to the exhibit.

An architect determines that 80 Gbps bandwidth is required for the link aggregation between the Building 1aggregation layer and Building 2. Which transceivers should the architect recommend for each pair of switches?

Examice · Accepted Answer

To achieve an 80 Gbps bandwidth using existing OM4 Multi-Mode fiber with only 6 strands available, the best option would be to use two QSFP+ BiDi transceivers. BiDi transceivers can handle bidirectional transmission on a single strand of fiber, effectively using fewer strands for higher bandwidth compared to options that require separate strands for transmission and reception. Therefore, two QSFP+ BiDi transceivers can provide the required 80 Gbps bandwidth with the existing 6 strands.

Hugh_Jazz · Answer

Hmmm, I think A.  You need 80 Gbps, MPO requires a minimum of 8 strands of fiber, we only have 6.  A provides us two BiDi, giving us the 80Gbps required with existing OM4 MMF.

ismoqi · Answer

Correct answer should be B. Because  there are only 6 strands, MPO use 12 strands

Johno · Answer

OM4 with QSFP+ will reach 150m so the distance is fine however with only 6 strands you can't use MPO as this requires 4 Tx and 4 Rx strands so not enough with a 6 strand cable - must be Answer A

Mrvn · Answer

A. two QSPF+ BiDi

HPE6-A47 Exam - Question 26

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