Drag a concept onto its matching description — or click a concept then click the description.
2 seconds
15 seconds
20 seconds
Drag and drop each STP timer on the left to its matching default value on the right.
Drag a concept onto its matching description — or click a concept then click the description.
2 seconds
15 seconds
20 seconds
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Hello timer: 2 seconds
Hello timer defaults to 2 seconds; Forward delay defaults to 15 seconds; Max age defaults to 20 seconds.
Visual reference
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Variation 1. Drag and drop each STP timer on the left to its matching default value on the right.
mediumWhy P1: Hello time default is 2 seconds; Forward delay default is 15 seconds; Max age default is 20 seconds.
Variation 2. What is the default STP hello timer value in seconds?
easyWhy B: 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.
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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.