What are the correct items in the following description of lossless network architecture design in multivariate computing scenarios?

Question

Options

• AIn the case of a two-level network, the Spine switch does not have an uplink interface, and all ports
• BWhen designing a network architecture, a bottom-up approach is generally used to determine how
• CIn two-tier networking, the number of Spine switches is equal to the total number of upstream
• DFirst, the total number of network access interfaces is determined according to the number of

• A
  100% (27)

Explanation

All four options are correct statements about lossless network architecture design in high-performance/multivariate computing environments. Option A is correct because in a two-tier (Spine-Leaf) topology, Spine switches sit at the top of the hierarchy with no upstream devices, so they have no uplink ports - all ports connect downward to Leaf switches. Option B is correct because network architects use a bottom-up design methodology, starting from compute node counts and access-layer requirements, then deriving upstream bandwidth and switch counts layer by layer. Option C is correct because in two-tier design, every Leaf switch must have one uplink to each Spine switch to ensure full-mesh connectivity and equal-cost multipathing; therefore, the number of Spine switches equals the number of uplink ports per Leaf. Option D is correct because the process begins by counting server/node access interfaces, which anchors the entire capacity-planning chain.

Since this is an "all of the above" question with no distractors, the key exam trap is assuming one or more options must be false - don't fall for it.

Memory tip: Think of Spine-Leaf design as bottom-up, full-mesh, no uplinks at top - if you remember those three principles, you can validate all four statements quickly under exam pressure.

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