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HP0-J73 · Question #45
HP0-J73 Question #45: Real Exam Question with Answer & Explanation
The correct answer is A: Dual-domain requires dual-port drives.. Dual-domain SAS uses two independent expander domains and requires dual-port drives to maintain simultaneous connectivity to both domains, which is the key differentiating hardware requirement.
Question
Which requirement differentiates dual-domain from dual-path SAS?
Options
- ADual-domain requires dual-port drives.
- BDual-domain requires less hardware.
- CDual-path requires dual-port controllers.
- DDual-path requires active SAS cables.
Explanation
Dual-domain SAS uses two independent expander domains and requires dual-port drives to maintain simultaneous connectivity to both domains, which is the key differentiating hardware requirement.
Common mistakes.
- B. Dual-domain actually requires more hardware than dual-path because it needs two separate expander domains, dual-port drives, and redundant controllers, making this statement factually incorrect.
- C. Dual-port controllers are commonly used in both dual-domain and dual-path SAS configurations and are not a unique or differentiating requirement exclusive to dual-path topology.
- D. Active SAS cables are not a defined or standard differentiating hardware requirement between dual-path and dual-domain SAS topologies.
Concept tested. Dual-domain vs dual-path SAS topology hardware requirements
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