- A
The VRF CUSTOMER routing table has 6 routes, including static and EIGRP routes.
The summary shows connected, static, and EIGRP routes totaling 6.
- B
The VRF CUSTOMER routing table is empty.
Why wrong: There are 6 routes.
- C
The VRF CUSTOMER has only connected routes.
Why wrong: Static and EIGRP routes are also present.
- D
The VRF CUSTOMER routing table has an error due to overlapping subnets.
Why wrong: No error is indicated in the summary.
Question 328 of 2,152
VRF Routing Table Summary Verification
This 300-410 practice question tests your understanding of device management. 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 runs the following command to troubleshoot a VRF route issue:
R1# show ip route vrf CUSTOMER summary IP routing table name is CUSTOMER (0x1) IP routing table maximum-paths is 32
Route Source Networks Subnets Overhead Memory (bytes) connected 2 0 0 320 static 1 0 0 160 eigrp 100 3 0 0 480 Internal 3 Total 6 0 0 960
What does this output indicate?
Quick Answer
The correct interpretation is that the VRF CUSTOMER routing table contains 6 total routes, comprised of 2 connected, 1 static, and 3 EIGRP-learned routes, with no errors or inconsistencies indicated. This output from the show ip route vrf CUSTOMER summary command provides a high-level verification of the VRF routing table summary, allowing a network engineer to quickly confirm the route sources and counts without parsing individual prefixes. On the Cisco CCNP ENARSI 300-410 exam, this command tests your ability to validate VRF route distribution and troubleshoot multi-protocol routing issues, often appearing in scenarios where you must distinguish between a healthy summary and one missing expected routes. A common trap is misreading the "Total" line as the number of networks rather than the sum of all routes, or overlooking that the "Subnets" column shows zero, which is normal for a classful summary. Remember the memory tip: "Total equals the sum of all route sources, not just the networks column."
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 VRF CUSTOMER routing table has 6 routes, including static and EIGRP routes.
The output shows the VRF CUSTOMER routing table summary, listing 2 connected routes, 1 static route, and 3 EIGRP routes, totaling 6 routes. This confirms that the VRF contains routes from multiple sources, including static and EIGRP, making option A correct.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 VRF CUSTOMER routing table has 6 routes, including static and EIGRP routes.
Why this is correct
The summary shows connected, static, and EIGRP routes totaling 6.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
The VRF CUSTOMER routing table is empty.
Why it's wrong here
There are 6 routes.
- ✗
The VRF CUSTOMER has only connected routes.
Why it's wrong here
Static and EIGRP routes are also present.
- ✗
The VRF CUSTOMER routing table has an error due to overlapping subnets.
Why it's wrong here
No error is indicated in the summary.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the ability to interpret the 'summary' keyword output, where candidates may mistakenly think the table is empty or only contains connected routes if they overlook the route source breakdown.
Detailed technical explanation
How to think about this question
The 'show ip route vrf CUSTOMER summary' command aggregates routes by source (connected, static, EIGRP) and provides memory usage per route type. In real-world scenarios, this helps quickly verify that redistribution or static routes are present in a VRF, especially when troubleshooting MPLS L3VPN or VRF-lite configurations where route leaking or incorrect redistribution can cause missing routes.
KKey Concepts to Remember
- Read the scenario before looking for a memorised answer.
- Find the constraint that changes the correct option.
- Eliminate answers that are true in general but not in this case.
TExam Day Tips
- Watch for words such as best, first, most likely and least administrative effort.
- Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A network engineer segments a warehouse floor into three subnets: 20 scanners, 5 printers, and 2 management hosts. Picking the wrong mask wastes addresses or leaves too few usable hosts. Exam questions test whether you can apply CIDR notation, calculate block size, and identify the correct usable-host range for a given prefix.
Visual reference
Quick reference
Routing Protocol Comparison
| Protocol | Metric | Max Hops | Algorithm | Type |
|---|---|---|---|---|
| RIP v2 | Hop count | 15 | Bellman-Ford | Distance vector |
| OSPF | Cost (bandwidth) | Unlimited | Dijkstra (SPF) | Link state |
| EIGRP | Composite metric | Unlimited | DUAL | Hybrid |
| IS-IS | Cost | Unlimited | Dijkstra | Link state |
| BGP | Policy / attributes | Unlimited | Path vector | Path vector |
RIP's 15-hop limit makes it unsuitable for large networks. OSPF and EIGRP dominate modern enterprise deployments.
What to study next
Got this wrong? Here's your next step.
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FAQ
Questions learners often ask
What does this 300-410 question test?
Device Management — This question tests Device Management — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The VRF CUSTOMER routing table has 6 routes, including static and EIGRP routes. — The output shows the VRF CUSTOMER routing table summary, listing 2 connected routes, 1 static route, and 3 EIGRP routes, totaling 6 routes. This confirms that the VRF contains routes from multiple sources, including static and EIGRP, making option A correct.
What should I do if I get this 300-410 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
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