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Exam HPE0-S37 topic 1 question 27 discussion

Actual exam question from HP's HPE0-S37
Question #: 27
Topic #: 1
[All HPE0-S37 Questions]

What do cluster environments use to identify node failures?

  • A. SNMP community strings
  • B. heartbeats
  • C. OSPF link state advertisements
  • D. network interface driver diagnostics
Show Suggested Answer Hide Answer
Suggested Answer: B 🗳️
What Happens when a Node Times Out
Each node sends a heartbeat message to the cluster coordinator every HEARTBEAT_INTERVAL number of microseconds (as specified in the cluster configuration file). The cluster coordinator looks for this message from each node, and if it does not receive it within NODE_TIMEOUT microseconds, the cluster is reformed minus the node no longer sending heartbeat messages.
On a node that is not the cluster coordinator, and on which a node timeout occurs (that is, no heartbeat message has arrived within NODE_TIMEOUT seconds), the following sequence of events occurs:
✑ The node tries to reform the cluster.
✑ If the node cannot get a quorum (if it cannot get the cluster lock) then
✑ The node halts (system reset).
References: http://docstore.mik.ua/manuals/hp-ux/en/B3936-90122/ch03s07.html
by bikelepo at April 4, 2025, 7:42 p.m.

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