CV0-004 Troubleshooting Practice Question
An organization's hybrid cloud environment uses a VPN connection between on-premises and the cloud. Intermittent connectivity drops are reported during peak hours. The VPN logs show rekeying failures. Which configuration is most likely the cause?
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 IPSec dead peer detection interval is set too high
A dead peer detection (DPD) interval set too high delays detection of lost peers, causing rekeying failures under load. Option A is wrong because pre-shared keys don't expire. Option C is wrong because throughput exceeded would show packet loss or high latency, not rekeying failures. Option D is wrong because blocking IKE packets would prevent the VPN from establishing at all.
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 VPN tunnel is using a pre-shared key that has expired
Why it's wrong here
Pre-shared keys do not have an expiration date.
- ✓
The IPSec dead peer detection interval is set too high
Why this is correct
A high DPD interval delays detection of unresponsive peers, causing rekeying failures during high traffic.
- ✗
The VPN gateway throughput is exceeded
Why it's wrong here
Exceeded throughput causes packet drops, not rekeying errors.
- ✗
The on-premises firewall is blocking IKE packets
Why it's wrong here
Blocking IKE would prevent initial VPN establishment, not cause intermittent drops.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This CV0-004 practice question is part of Courseiva's free CompTIA 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 CV0-004 exam.