DCN (data center network) that provides interconnection within the data center and interconnection between the internal and external egresses of the data center. A DCN usually consists of a series…

Question

Options

• ATRUE
• BFALSE

• A
  17% (5)
• B
  83% (24)

Explanation

B (FALSE) is correct because the statement's second clause is inaccurate: a DCN does not concentrate all functions in one area. In reality, DCNs use distributed, multi-tier architectures - such as the classic three-tier (core, aggregation, access) or modern spine-leaf designs - specifically to avoid single points of failure and support horizontal scalability. The first part of the statement is actually true (DCNs do handle both internal interconnection and internal-to-external egress traffic), but the false claim about centralized function placement makes the entire statement incorrect.

Why A is wrong: Marking it TRUE would require the full statement to be accurate, but the claim that "all functions concentrate in one area" directly contradicts how real DCNs are engineered.

Memory tip: Think of a DCN like a city's road network - traffic is distributed across many roads and intersections, not funneled through a single junction. If it were all in one place, one failure would take everything down. "Distributed, not concentrated" is the DCN mantra.

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