350-601 Network Practice Question
A network engineer is configuring an ACI contract between an EPG and an external EPG. Which construct is used to permit traffic from the external EPG to the internal EPG?
⚠ Common exam trap
Cisco often tests the misconception that the provider is always the server or internal resource, but in ACI, the provider is the entity that offers the contract and defines the traffic direction, which can be the external EPG when allowing inbound traffic.
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 external EPG is the provider and the internal EPG is the consumer.
In Cisco ACI, the provider EPG exposes a contract, and the consumer EPG consumes it. To permit traffic from an external EPG to an internal EPG, the internal EPG must be the consumer (initiating the communication) and the external EPG must be the provider (offering the contract). This aligns with the default directionality of contracts, where the provider's filter rules allow inbound traffic from the consumer.
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 internal EPG is the provider and the external EPG is the consumer.
Why it's wrong here
That would allow internal to external, not external to internal.
- ✗
Both EPGs are providers.
Why it's wrong here
Contracts have one provider and one consumer.
- ✗
Both EPGs are consumers.
Why it's wrong here
A contract requires a provider.
- ✓
The external EPG is the provider and the internal EPG is the consumer.
Why this is correct
Correct direction for inbound traffic.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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