- A
Contracts are applied between EPGs to allow communication.
Correct. Contracts define allowed traffic directions and filters.
- B
A VRF is equivalent to a Layer 3 domain within a tenant.
Correct. VRF provides Layer 3 isolation.
- C
EPGs can communicate with each other without any contract.
Why wrong: By default, EPGs are isolated; contracts are required.
- D
An EPG belongs to a single bridge domain.
Correct. Each EPG is associated with one BD.
- E
L3Out is used to connect the ACI fabric to external Layer 2 networks.
Why wrong: L3Out is for Layer 3 external connectivity.
Question 100 of 1,000
350-601 Network Practice Question
This 350-601 practice question tests your understanding of network. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
In an ACI fabric, a tenant is configured with multiple bridge domains (BDs) and EPGs. Which three statements correctly describe the ACI model? (Choose three.)
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
✓
Contracts are applied between EPGs to allow communication.
Option A is correct because in ACI, contracts are the mechanism used to enable communication between EPGs. By default, all traffic is denied, and a contract must be explicitly applied to allow traffic flow between EPGs, enforcing a zero-trust model.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Contracts are applied between EPGs to allow communication.
Why this is correct
Correct. Contracts define allowed traffic directions and filters.
Related concept
Read the scenario before looking for a memorised answer.
- ✓
A VRF is equivalent to a Layer 3 domain within a tenant.
Why this is correct
Correct. VRF provides Layer 3 isolation.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
EPGs can communicate with each other without any contract.
Why it's wrong here
By default, EPGs are isolated; contracts are required.
- ✓
An EPG belongs to a single bridge domain.
Why this is correct
Correct. Each EPG is associated with one BD.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
L3Out is used to connect the ACI fabric to external Layer 2 networks.
Why it's wrong here
L3Out is for Layer 3 external connectivity.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the misconception that EPGs can communicate freely without contracts, but the correct ACI model requires contracts for any inter-EPG traffic, even within the same bridge domain.
Detailed technical explanation
How to think about this question
In ACI, a VRF (option B) acts as a Layer 3 domain, providing route isolation and separate forwarding tables for each tenant. An EPG (option D) is a logical grouping of endpoints that must belong to exactly one bridge domain, which defines the Layer 2 forwarding boundary. Contracts use filters and subjects to specify permitted protocols and ports, and are enforced by the leaf switches' hardware tables.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 350-601 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this 350-601 question test?
Network — This question tests Network — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Contracts are applied between EPGs to allow communication. — Option A is correct because in ACI, contracts are the mechanism used to enable communication between EPGs. By default, all traffic is denied, and a contract must be explicitly applied to allow traffic flow between EPGs, enforcing a zero-trust model.
What should I do if I get this 350-601 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Last reviewed: Jul 4, 2026
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.
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