mediumMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command to verify…
A network engineer runs the following command to verify redistribution with route-maps:
R1# show ip route 10.10.10.0 255.255.255.0
Routing entry for 10.10.10.0/24 Known via "eigrp 100", distance 170, metric 2560002816 Tag 100, type internal Last update from 10.1.1.2 on GigabitEthernet0/0, 00:00:45 ago Routing Descriptor Blocks:
* 10.1.1.2, from 10.1.1.2, 00:00:45 ago, via GigabitEthernet0/0
Route metric is 2560002816, traffic share count is 1 Total delay is 2000 microseconds, minimum bandwidth is 100000 Kbit Reliability 255/255, minimum MTU 1500 bytes Loading 1/255, Hops 1
What does the 'Tag 100' indicate?
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 route has a tag of 100, likely set by a route-map during redistribution.
The 'Tag 100' indicates that a route-map applied during redistribution set the tag to 100. Route tags are often used for filtering or administrative purposes during redistribution.
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 route was originated by EIGRP autonomous system 100.
Why it's wrong here
The EIGRP AS is shown as 'eigrp 100', but the Tag field is separate and set by a route-map.
- ✓
The route has a tag of 100, likely set by a route-map during redistribution.
Why this is correct
The 'Tag 100' is a route tag, commonly set by a route-map to mark routes for filtering or administrative purposes.
- ✗
The route is internal to EIGRP and has a metric of 100.
Why it's wrong here
The metric is 2560002816, not 100. Tag and metric are different fields.
- ✗
The route is from a BGP AS 100.
Why it's wrong here
The route is learned via EIGRP, not BGP.
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.
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Variation 1. A network engineer runs the following command to troubleshoot redistribution with route-maps: R1# show ip route summary IP routing table name: Default-IP-Routing-Table(0) IP routing table maximum-paths: 32 Route Source Networks Subnets Replicates Overhead Memory (bytes) connected 0 3 0 0 480 static 0 0 0 0 0 ospf 1 2 5 0 0 1280 eigrp 100 1 2 0 0 640 bgp 65000 0 0 0 0 0 internal 2 Total 3 10 0 0 2400 What does this output indicate?
medium- ✓ A.BGP is not receiving any routes, possibly due to filtering.
- B.EIGRP is redistributing routes into OSPF.
- ✓ C.OSPF has more routes than EIGRP.
- D.The router has a total of 13 routes.
Why A: The output shows that BGP has zero routes, indicating BGP is not receiving any routes, possibly due to filtering. This is the most significant finding for troubleshooting redistribution. While OSPF does have more routes than EIGRP numerically, that is not directly indicative of redistribution issues and is not the primary takeaway.
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.