300-710 SNCF Integration Practice Question
An administrator is troubleshooting an eStreamer client script failure where the connection is refused on port 8302. Which TWO potential causes should the administrator investigate? (Choose two)
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
✓
An intermediate firewall or the FMC internal iptables firewall is blocking TCP port 8302 traffic.
Connection refused errors on port 8302 indicate that the eStreamer service is not running on the FMC or that network filtering/firewalls are blocking access to port 8302.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
An intermediate firewall or the FMC internal iptables firewall is blocking TCP port 8302 traffic.
Why this is correct
Firewalls blocking port 8302 will prevent client connections from reaching the FMC eStreamer daemon.
- ✗
The FTD Snort engine is out of memory.
Why it's wrong here
Snort memory issues affect data inspection, not FMC management plane eStreamer listener ports.
- ✗
The DHCP lease on the FTD data interface has expired.
Why it's wrong here
DHCP leases on data interfaces do not cause eStreamer connection refused errors on FMC.
- ✗
The pxGrid certificate on ISE has expired.
Why it's wrong here
pxGrid expiration affects ISE integration, not FMC eStreamer port connectivity.
- ✓
The eStreamer service/daemon is not running or enabled on the FMC management plane.
Why this is correct
If the eStreamer service is stopped, TCP connections to port 8302 will be refused.
About these practice questions
Courseiva writes every 300-710 SNCF question from scratch — 478 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed August 2026 · checked against the official Cisco exam blueprint
This 300-710 SNCF 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 300-710 SNCF exam.