Huawei's two-city-three-center disaster recovery solution supports the following architectures:

Question

Options

• AParallel architecture, cascade architecture
• BParallel architecture, star architecture
• CCascade architecture, star architecture
• DParallel architecture, cascade architecture, star architecture

• A
  81% (26)
• B
  3% (1)
• C
  13% (4)
• D
  3% (1)

Explanation

Huawei's two-city-three-center (两地三中心) disaster recovery solution is specifically designed around two deployment architectures: parallel (active-active centers handling traffic simultaneously) and cascade (centers linked in a chain where one feeds into the next). Star architecture - where a single hub connects to multiple spokes - is not part of this solution's defined design patterns, which eliminates options B, C, and D.

• B is wrong because it swaps cascade for star; star topology is not a recognized mode in this DR framework.
• C is wrong because it drops parallel entirely and keeps star, missing both the correct inclusion of parallel and incorrectly adding star.
• D is wrong because it adds star architecture, which Huawei's two-city-three-center solution does not support - three choices sounds comprehensive but overcounts.

Memory tip: Use the acronym PC - "Parallel and Cascade" - and remember that "Star" is the distractor that sounds advanced but doesn't belong here. If you picture a two-city deployment, a star implies one central hub controlling others, which contradicts the peer-oriented or chained nature of a multi-center DR design.

No community discussion yet for this question.