mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Given the following partial configuration on…
Given the following partial configuration on router R1: ```
interface GigabitEthernet0/0 ip vrf forwarding CUSTOMER_A ip address 192.168.1.1 255.255.255.0
``` What is the effect of this 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
✓
The interface is placed into VRF CUSTOMER_A, and the IP address is assigned correctly.
The 'ip vrf forwarding' command associates the interface with a VRF. It removes the IP address if one was previously configured, requiring it to be re-applied. This ensures traffic on this interface is forwarded using the VRF's routing table.
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 interface is placed into VRF CUSTOMER_A, and the IP address is assigned correctly.
Why this is correct
This is correct. The VRF association is applied before the IP address, so the IP address is associated with the VRF.
- ✗
The interface is placed into VRF CUSTOMER_A, but the IP address is ignored because it must be configured before the VRF command.
Why it's wrong here
Incorrect. The order shown (VRF first, then IP) is the correct order to avoid IP address removal.
- ✗
The VRF name is misspelled; it should be 'vrf forwarding CUSTOMER_A' under the interface.
Why it's wrong here
Incorrect. The command syntax is correct: 'ip vrf forwarding <name>'.
- ✗
The configuration will fail because VRF CUSTOMER_A must be created globally first.
Why it's wrong here
Incorrect. The VRF must be defined globally with 'ip vrf CUSTOMER_A' before it can be used on an interface. The configuration shown assumes it exists; if not, the command will be rejected.
Go deeper
Related to this question
Learn chapter
ACL-Based Traffic Filtering and Policy-Based Routing
Key term
MPLS Layer 3 VPN
A technology that uses Multiprotocol Label Switching to create secure, scalable virtual private networks that connect multiple sites at the network layer, where the service provider manages routing between customer sites.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 300-410 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 300-410 exam.