Explain Network Configurations in Gen 5 and Gen 6, Including Link Aggregation, Failover LACP, FEC, and Round Robin POWERSCALE-DEPLOY Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is the purpose of Forward Error Correction (FEC) in PowerScale network interfaces?

   • ATo detect and correct bit errors in transmitted data without requiring retransmission.
   • BTo prioritize traffic based on QoS policies.
   • CTo encrypt data to prevent unauthorized access.
   • DTo compress data before transmission to reduce bandwidth usage.
   Reveal Solution Discussion Select an answer first
2. 17foundation · easy

   What is the role of LACP in a PowerScale network configuration?

   • AIt dynamically negotiates the bundling of physical links into a logical link and detects link failures.
   • BIt encrypts data transmitted over the aggregated links.
   • CIt assigns IP addresses to each physical link in the bundle.
   • DIt provides routing between VLANs on the switch.
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4. 18expert · hard

   A company has a PowerScale Gen 6 cluster with two 25 GbE links connected to a single switch. They want to configure link aggregation with LACP for redundancy. The switch supports LACP but the administrator is unsure about the correct mode. Which LACP mode should they use to ensure that the link aggregation group is established and provides failover?

   • AActive mode on the switch and passive mode on the cluster, because the switch must initiate the negotiation.
   • BActive mode on both the switch and the cluster, because it allows either side to initiate the LACP negotiation.
   • CPassive mode on both the switch and the cluster, because it is the default and works without configuration.
   • DPassive mode on the switch and active mode on the cluster, because the cluster must initiate the negotiation.
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5. 19application · medium

   A PowerScale cluster has a link aggregation group with four 10 GbE links. The administrator notices that one link is carrying 80% of the traffic while the other three are underutilized. They suspect the load-balancing algorithm is not distributing traffic well. Which change would most likely improve the distribution?

   • AChange the load-balancing algorithm to Round Robin, which sends packets to links in a round-robin fashion.
   • BIncrease the number of links in the aggregation group to provide more capacity.
   • CAdjust the hash algorithm to use different packet fields, such as source and destination IP addresses.
   • DEnable LACP fast timeout to allow quicker rebalancing of flows.
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6. 20application · medium

   A PowerScale Gen 5 cluster has a link aggregation group with two 10 GbE links. The administrator wants to ensure that traffic is distributed evenly across both links. They have enabled Round Robin load balancing. What is a potential drawback of using Round Robin in this scenario?

   • ARound Robin requires a dedicated switch port for each link, increasing hardware costs.
   • BRound Robin does not provide any redundancy if one link fails.
   • CRound Robin can cause out-of-order packet delivery, which may degrade TCP performance.
   • DRound Robin is only supported on Gen 6 hardware, not Gen 5.
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