Question 450 of 1,420
easyMultiple ChoiceObjective-mapped
350-401 The default STP hello timer value in seconds? Practice Question
What is the default STP hello timer value in seconds?
⚠ Common exam trap
Cisco often tests the distinction between the hello timer (2 seconds), forward delay (15 seconds), and max age (20 seconds), and candidates frequently confuse the hello timer with the forward delay or max age values.
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
✓
2 seconds
The default STP hello timer is 2 seconds, as defined by IEEE 802.1D. This timer controls how often a root bridge sends configuration BPDUs to maintain the spanning-tree topology. The hello timer value is used in conjunction with the forward delay and max age timers to ensure loop-free convergence.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
1 second
Why it's wrong here
Hello timer is 2 seconds by default.
- ✓
2 seconds
Why this is correct
Default hello timer is 2 seconds.
- ✗
5 seconds
Why it's wrong here
5 seconds is not a default STP timer.
- ✗
10 seconds
Why it's wrong here
10 seconds is the default forward delay timer, not hello.
Visual reference
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Last reviewed: Jul 4, 2026
This 350-401 practice question is part of Courseiva's free Cisco certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the 350-401 exam.
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