- A
Increase the administrative distance of the IP SLA-tracked static route to be higher than the primary route.
Why wrong: Increasing the AD would make the tracked route less preferred; it should be higher than the primary only if it is a floating static. The issue is that the tracked route is not being installed because the primary route has a lower AD.
- B
Remove the primary route from the routing table.
To install the tracked route, the primary route must be removed (e.g., by shutting down the interface or redistributing). The tracked route will then be installed.
- C
Change the IP SLA probe to use UDP instead of ICMP.
Why wrong: The probe type does not affect route installation.
- D
Add a 'set metric' command to the IP SLA configuration.
Why wrong: IP SLA does not have a 'set metric' command; metrics are not relevant to static route installation.
300-410 IP SLA Practice Question
This 300-410 practice question tests your understanding of ip sla. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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.
A network engineer configured IP SLA 90 to monitor a remote router's loopback (10.0.0.1) using ICMP echo. The IP SLA is linked to a track object that is used in a static route. The engineer notices that the IP SLA state is 'Active', but the static route is not installed. The track object shows 'Up'. The engineer checks the routing table and sees a different route to the same destination with a lower administrative distance. What should the engineer do to ensure the IP SLA-tracked route is used when the primary fails?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"primary"Why it matters: Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
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
Remove the primary route from the routing table.
If a route with a lower AD exists, the IP SLA-tracked route will not be installed unless the primary route is removed. The engineer must ensure the tracked route has a higher AD than the primary route, or remove the primary route.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Increase the administrative distance of the IP SLA-tracked static route to be higher than the primary route.
Why it's wrong here
Increasing the AD would make the tracked route less preferred; it should be higher than the primary only if it is a floating static. The issue is that the tracked route is not being installed because the primary route has a lower AD.
- ✓
Remove the primary route from the routing table.
Why this is correct
To install the tracked route, the primary route must be removed (e.g., by shutting down the interface or redistributing). The tracked route will then be installed.
Clue confirmation
The clue word "primary" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
- ✗
Change the IP SLA probe to use UDP instead of ICMP.
Why it's wrong here
The probe type does not affect route installation.
- ✗
Add a 'set metric' command to the IP SLA configuration.
Why it's wrong here
IP SLA does not have a 'set metric' command; metrics are not relevant to static route installation.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Trap categories for this question
Command / output trap
IP SLA does not have a 'set metric' command; metrics are not relevant to static route installation.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 300-410 NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this 300-410 question test?
IP SLA — This question tests IP SLA — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Remove the primary route from the routing table. — If a route with a lower AD exists, the IP SLA-tracked route will not be installed unless the primary route is removed. The engineer must ensure the tracked route has a higher AD than the primary route, or remove the primary route.
What should I do if I get this 300-410 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related 300-410 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "primary". Asks for the main purpose or function, not a secondary benefit. Eliminate answers that describe side-effects or partial functions.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 19, 2026
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.
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