300-710 SNCF Configuration Practice Question
An administrator is configuring a Network Address Translation (NAT) rule on a Cisco FMC managed Threat Defense device. The requirement is to translate the source IP address of traffic coming from the inside zone going to the outside zone, but only for a specific internal subnet. Which NAT type must the administrator select in the FMC NAT rule configuration?
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
✓
Auto NAT (Object NAT)
Manual NAT or Auto NAT can be used, but for granular control over source and destination zones and interfaces, an Auto NAT rule or a Manual NAT rule configured as Source NAT (Dynamic NAT or PAT) from inside to outside is required. Specifically, for translating source IP addresses of an internal subnet going out, Auto NAT (Network Object NAT) using a network object for the source is the most direct method.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Twice NAT (Destination NAT)
Why it's wrong here
Destination NAT is primarily used to translate destination IP addresses for inbound connections.
- ✗
Prefilter NAT
Why it's wrong here
Prefilter policies do not perform NAT; they handle fast-path processing and encapsulation.
- ✓
Auto NAT (Object NAT)
Why this is correct
Auto NAT is tied directly to a network or host object and is commonly used to translate a specific internal subnet to an outside interface address.
- ✗
Manual NAT (Identity NAT)
Why it's wrong here
Identity NAT translates an IP address to itself, which does not hide or change the source IP.
Visual reference
About these practice questions
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JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Cisco exam blueprint
This 300-710 SNCF 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 300-710 SNCF exam.