hardMultiple ChoiceObjective-mapped
300-410 Practice Question: Runs the following command on Router R1: R1# show…
A network engineer runs the following command on Router R1:
R1# show flow monitor FLOW-MONITOR-1 cache format table
Cache type: Normal Cache size: 1000 Current entries: 0 High Watermark: 0
Flows added: 0 Flows aged: 0 - Active timeout (1800 secs) 0 - Inactive timeout (15 secs) 0 - Event aged 0 - Watermark aged 0 - Emergency aged 0
R1# show flow interface GigabitEthernet0/1 Interface GigabitEthernet0/1
FNF: monitor Monitor: FLOW-MONITOR-1 direction: Input traffic-statistics: enabled
Based on both outputs, what is the most likely problem?
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 flow monitor is attached, but no traffic is flowing through the interface.
The flow monitor is attached to the interface, but the cache shows 0 flows added. This suggests that no traffic is being received on that interface, or the flow record does not match any packets (e.g., record type mismatch).
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 flow monitor is attached, but no traffic is flowing through the interface.
Why this is correct
The monitor is correctly applied, but 0 flows added indicates no packets are being processed, likely due to no traffic.
- ✗
The flow monitor is not attached to the interface.
Why it's wrong here
The interface output shows it is attached.
- ✗
The cache size is too small.
Why it's wrong here
Cache size is irrelevant when no flows are added.
- ✗
The flow exporter is misconfigured.
Why it's wrong here
Exporter configuration does not affect cache addition; the monitor captures flows regardless of exporter.
Quick reference
Common DNS Record Types
| Record | Purpose | Example |
|---|---|---|
| A | IPv4 address mapping | example.com → 93.184.216.34 |
| AAAA | IPv6 address mapping | example.com → 2606:2800::1 |
| CNAME | Alias to another hostname | www → example.com |
| MX | Mail server for domain | example.com → mail.example.com (priority 10) |
| TXT | Text data (SPF, DKIM, verification) | v=spf1 include:_spf.example.com ~all |
| NS | Authoritative name servers | example.com NS ns1.example.com |
| PTR | Reverse DNS (IP → hostname) | 34.216.184.93.in-addr.arpa → example.com |
| SOA | Zone authority record | Primary NS, admin email, serial, TTL defaults |
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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.