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303 · Question #272
303 Question #272: Real Exam Question with Answer & Explanation
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Question
A high-availability (HA) pair configuration uses only the hardwire serial cable connection to determine device state. A power outage occurs to the PDU powering the active unit. The standby unit takes over the active role as expected. How is the peer unit able to determine the active unit is unavailable?
Options
- Avoltage loss on serial cable
- Bno data stream received on serial port
- Cno response on management interface
- Dno heartbeat packets received on self IPs
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