Explain Network Configurations in Gen 5 and Gen 6, Including Link Aggregation, Failover LACP, FEC, and Round Robin POWERSCALE-DEPLOY Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   A PowerScale Gen 5 cluster uses a 4-port link aggregation group for client traffic. The administrator notices that one link carries significantly more traffic than the others, causing occasional congestion. They want to implement a more even distribution of traffic across the links. Which configuration change would best achieve this?

   • AChange the load-balancing algorithm to Round Robin, which distributes packets evenly across all links.
   • BIncrease the number of links in the aggregation group to provide more capacity and reduce congestion.
   • CEnable LACP fast timeout to allow quicker rebalancing of flows.
   • DAdjust the hash algorithm used for link aggregation to use a different set of packet fields, such as source and destination IP addresses.
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2. 12foundation · easy

   In a PowerScale cluster, what is a common use case for Round Robin load balancing across network links?

   • ATo prioritize traffic based on QoS policies.
   • BTo provide encryption for data in transit.
   • CTo distribute client traffic evenly across multiple front-end network interfaces.
   • DTo ensure all traffic uses a single link for simplicity.
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4. 13expert · hard

   A PowerScale Gen 5 cluster has two 10 GbE links from each node to a top-of-rack switch. The network team wants to configure link aggregation with failover LACP. They have two switches available, but they are not stacked. The cluster must tolerate a switch failure without losing connectivity. What should they do?

   • AConfigure two separate LACP bundles, one to each switch, and use a failover policy that activates the standby bundle when the active bundle loses connectivity.
   • BConfigure a single LACP bundle with one link to each switch, because LACP supports multi-switch link aggregation without any special switch configuration.
   • CConfigure a single LACP bundle with both links to one switch and rely on the switch's Spanning Tree Protocol to fail over to the other switch.
   • DUse Round Robin load balancing across the two links without LACP, because it provides both load sharing and automatic failover to the remaining link.
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5. 14expert · hard

   A PowerScale Gen 6 cluster is deployed with 100 GbE links. The administrator is considering enabling FEC to improve data integrity. However, they are concerned about the potential performance impact. What is a valid consideration when enabling FEC?

   • AFEC eliminates the need for link aggregation because it provides redundancy.
   • BFEC must be enabled on the switch but not on the cluster, because the cluster automatically corrects errors.
   • CFEC is only supported on Gen 5 hardware, not Gen 6.
   • DFEC adds overhead that can reduce effective throughput, but it improves error correction and reduces retransmissions.
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6. 15foundation · easy

   In PowerScale Gen 5 and Gen 6 hardware, which network configuration change is most characteristic of the Gen 6 generation?

   • AGen 6 removes the need for external switches by integrating all networking into the backplane.
   • BGen 6 only supports link aggregation via static teaming, while Gen 5 supports LACP.
   • CGen 6 uses a single 10GbE port for all front-end traffic, while Gen 5 uses multiple 1GbE ports.
   • DGen 6 introduces support for 100GbE and 25GbE ports, while Gen 5 typically uses 10GbE and 40GbE ports.
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