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This host must serve three VLANs with redundant NICs. Explain VLAN subinterfaces and where each bonding mode fits.

Enterprise loops pair these topics because they test L2 literacy plus vendor coordination together. The scored insight is that LACP spreads flows, not packets, and needs the switch to agree.

Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

Enterprise loops pair these topics because they test L2 literacy plus vendor coordination together. The scored insight is that LACP spreads flows, not packets, and needs the switch to agree.

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