Question 369 of 498
VCP-DCV Configure and Manage vSphere Storage Practice Question
A vSphere environment uses an iSCSI storage array with multiple targets. The administrator configures CHAP authentication but some hosts fail to connect. The working hosts are configured with mutual CHAP, while the failing hosts use only one-way CHAP. What is the most likely reason for the failures?
⚠ Common exam trap
Many candidates assume CHAP configuration is binary (enabled or disabled) and overlook the distinction between one-way and mutual CHAP, leading them to incorrectly select a missing secret or target name issue.
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 storage array requires mutual CHAP, but the failing hosts are configured for one-way CHAP.
Mutual CHAP requires the target to authenticate the initiator and the initiator to authenticate the target. If the storage array is configured to require mutual CHAP, hosts using only one-way CHAP will fail to complete the authentication handshake. The working hosts are configured with mutual CHAP, confirming the array enforces mutual authentication.
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 CHAP secret is not set on the failing hosts.
Why it's wrong here
The hosts have one-way CHAP, so secret is set.
- ✓
The storage array requires mutual CHAP, but the failing hosts are configured for one-way CHAP.
Why this is correct
Mutual CHAP requires both sides to authenticate.
- ✗
The iSCSI target name is incorrect on the failing hosts.
Why it's wrong here
Target name is likely correct because connection attempt is made.
- ✗
The storage array is configured to use only one-way CHAP.
Why it's wrong here
If array used one-way, mutual would fail, but mutual works.
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Last reviewed: Jun 11, 2026
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