mediumMultiple ChoiceObjective-mapped
350-701 Practice Question: Refer to the exhibit
Exhibit
interface GigabitEthernet0/0 nameif inside security-level 100 ip address 10.0.0.1 255.255.255.0 ! interface GigabitEthernet0/1 nameif outside security-level 0 ip address 192.168.1.1 255.255.255.0 ! access-list INSIDE_NAT extended permit ip 10.0.0.0 0.0.0.255 192.168.3.0 0.0.0.255 nat (inside,outside) source dynamic 10.0.0.0 255.255.255.0 interface
Refer to the exhibit. A host with IP address 10.0.0.5 sends traffic to destination 192.168.2.10. The traffic is not being translated. What is the most likely cause?
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 ACL INSIDE_NAT does not permit traffic to the destination network 192.168.2.0/24.
The access-list INSIDE_NAT permits traffic to network 192.168.3.0/24, but the destination is 192.168.2.10, which is not matched. Therefore, NAT is not applied to that traffic. Option B is correct. Options A, C, and D are not relevant because dynamic NAT is allowed, outside interface has an IP, and security-level does not affect NAT.
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 security-level of the inside interface is too high to allow NAT.
Why it's wrong here
Security-level does not impact NAT functionality.
- ✓
The ACL INSIDE_NAT does not permit traffic to the destination network 192.168.2.0/24.
Why this is correct
The ACL only permits traffic to 192.168.3.0/24, so 192.168.2.0/24 traffic is not matched and hence not translated.
- ✗
The interface outside does not have a valid IP address assigned.
Why it's wrong here
The outside interface has IP 192.168.1.1, which is valid.
- ✗
The NAT statement uses source dynamic instead of source static; dynamic cannot translate internal IPs.
Why it's wrong here
Dynamic NAT is commonly used for internal-to-external translation; static is not required.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
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