156-115.80 · Question #115
Your customer reports that the time on the standby cluster member is not correct. After failing over and making it active, the time is now correct. NTP has been configured on both machines, so it is…
The correct answer is C. Traffic from the standby member was hidden behind the cluster IP address and was therefore returning. Explanation/Reference:
Question
Your customer reports that the time on the standby cluster member is not correct. After failing over and making it active, the time is now correct. NTP has been configured on both machines, so it is expected that both machines be in sync with the NTP server. Upon investigating, it was found that the standby member was never able to communicate with the NTP server while it was in standby configuration. What could be the problem?
Options
- AYou should be syncing your backup to the primary for time settings.
- BNTP is not supported in active-passive mode.
- CTraffic from the standby member was hidden behind the cluster IP address and was therefore returning
- DRouting prevents the standby member from performing functions such as peering with dynamic routing
How the community answered
(26 responses)- A12% (3)
- B4% (1)
- C77% (20)
- D8% (2)
Explanation
Explanation/Reference:
Topics
Community Discussion
3
Fatima Z.Nov 6, 2025C is your answer, and here is the sticky hook to lock it in: picture the standby member wearing an INVISIBILITY CLOAK called the Cluster IP, it tries to shout at the NTP server but the reply comes back addressed to that shared cluster IP, the active member grabs the reply, and the standby gets nothing. The standby hides behind the cluster virtual IP for outbound traffic, so the NTP server sends its response to that VIP, the active node handles it, and the standby never actually receives the time sync it requested.
Bahar F.Oct 27, 2025C is right, but do you know which specific IP the standby uses for NTP traffic?
Grace U.Oct 20, 2025C is the one here. In an active-passive cluster, the standby member sends its NTP traffic sourced from the cluster IP, so the NTP server replies to that address, which the standby never receives because the active member owns it.