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300-410 Practice Question: Which THREE symptoms indicate that a device's NTP…
Which THREE symptoms indicate that a device's NTP synchronization is failing? (Choose THREE.)
⚠ Common exam trap
Cisco often tests the distinction between NTP association status symbols (asterisk vs. dot) and the synchronization state in 'show ntp status', leading candidates to confuse a reachable peer with a synchronized one.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The output of 'show clock' does not have an asterisk (*) next to the time.
The asterisk (*) next to the time in the output of 'show clock' indicates that the device's clock is synchronized via NTP. If the asterisk is missing, the clock is not synchronized, which is a direct symptom of NTP synchronization failure.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The output of 'show clock' does not have an asterisk (*) next to the time.
Why this is correct
The asterisk indicates the clock is synchronized to an NTP source.
- ✓
The output of 'show ntp associations' shows a dot (.) instead of an asterisk (*) for the peer.
Why this is correct
A dot means the association is configured but not synchronized.
- ✓
Syslog messages indicate 'NTP synchronization lost'.
Why this is correct
Such syslog messages directly indicate a loss of NTP sync.
- ✗
The output of 'show ntp status' shows 'Clock is synchronized'.
Why it's wrong here
This indicates successful synchronization, not failure.
- ✗
The command 'ntp peer 10.1.1.1' is configured.
Why it's wrong here
This is a configuration command, not a symptom of failure.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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