When following best practices, what is the required minimum number of uplinks per switch to achieve network performance and redundancy in ECS?

Question

Options

• A1
• B2
• C3
• D4

• A
  5% (1)
• B
  91% (20)
• C
  5% (1)

Explanation

Two uplinks per switch is the minimum because it satisfies both requirements simultaneously: one uplink can fail while the second maintains connectivity (redundancy), and traffic can be distributed across both links for improved throughput (performance). A single uplink (A) creates a single point of failure with zero redundancy - if it goes down, the switch loses all connectivity. Options C and D (3 or 4 uplinks) exceed the minimum and can improve performance further, but they are not the required minimum - the question asks for the floor, not the ceiling.

Memory tip: Think "2 = redundancy pair." Just like you need at least two legs to stand up, a switch needs at least two uplinks to stay up if one falls. Any time an exam asks for the minimum to achieve both performance and redundancy, the answer is always the smallest number that covers both - and one link can never cover redundancy, so 2 is the logical floor.

No community discussion yet for this question.