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Exam DES-1423 topic 1 question 17 discussion

Actual exam question from Dell's DES-1423
Question #: 17
Topic #: 1
[All DES-1423 Questions]

A company deployed an Isilon cluster that consists of eight nodes connected to a main production subnet by all available 10GB ports. Later, the company decided to implement a disaster recovery solution with a separate replication subnet. During the reconfiguration, one of the 10Gb ports from each of the nodes 1-4 was moved into the new pool and SBR was activated.
After activating the replication policies, the administrator noticed that the main production ports on nodes 1-4 reached the bandwidth limit. What is a possible reason for this behavior?

  • A. Default gateway for the replication subnet has a higher priority value.
  • B. Default gateway for the replication subnet is not specified.
  • C. Default gateway for the replication subnet has a lower priority value.
  • D. Main production ports have a smaller bandwidth limit than replication ports.
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Suggested Answer: B 🗳️
by Xperience at July 24, 2023, 6:56 p.m.

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Lmntary
1 year ago
C. might be possible. The lowest priority value has the highest priority. Each gateway is assigned a priority value. But per best practice, the data network gateway should be assigned the lowest value, so as to maximise cluster performance. Unless they swapped the values of replication and production, it´s more likely to be something like D.
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Xperience
1 year, 5 months ago
Selected Answer: D
D is a more plausible explanation for the behavior. When one of the 10Gb ports from each of the nodes 1-4 was moved into the new pool for replication purposes and SBR was activated, some of the available bandwidth on those nodes may have been allocated to the replication subnet, resulting in reduced bandwidth capacity for the main production ports on those nodes.
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