350-601 Network Practice Question
In an ACI fabric, a contract between two EPGs uses a filter that permits TCP port 443. The provider EPG is configured with a VMM domain integration. Which statement about the contract's effect is true?
⚠ Common exam trap
Cisco often tests the misconception that contracts allow traffic from provider to consumer, leading candidates to incorrectly select option B, when in fact ACI contracts are unidirectional from consumer to provider unless a reverse filter is explicitly configured.
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
✓
Traffic from the consumer EPG to the provider EPG on TCP 443 is allowed.
In Cisco ACI, contracts define unidirectional communication from the consumer EPG to the provider EPG. The filter permitting TCP port 443 allows traffic from the consumer to the provider. The VMM domain integration does not alter this contract behavior; it only manages virtual machine connectivity. Therefore, only traffic from the consumer EPG to the provider EPG on TCP 443 is permitted.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Both directions are allowed for TCP 443.
Why it's wrong here
This is incorrect because ACI contracts are unidirectional, not bidirectional, unless a reverse filter is explicitly configured.
- ✗
Traffic from the provider EPG to the consumer EPG on TCP 443 is allowed.
Why it's wrong here
This is incorrect. In ACI, contracts allow traffic from the consumer to the provider, not from the provider to the consumer.
- ✓
Traffic from the consumer EPG to the provider EPG on TCP 443 is allowed.
Why this is correct
This is correct. The contract with a filter for TCP 443 permits traffic from the consumer EPG to the provider EPG.
- ✗
The VMM domain overrides the contract and permits all traffic.
Why it's wrong here
This is incorrect. The VMM domain does not override contract behavior; it only integrates virtual machine management and does not affect traffic filtering rules.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 350-601 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 350-601 exam.