hardMultiple ChoiceObjective-mapped
FC0-U71 Practice Question: Refer to the exhibit
Exhibit
Refer to the exhibit. $ ping 8.8.8.8 PING 8.8.8.8 (8.8.8.8) 56(84) bytes of data. --- 8.8.8.8 ping statistics --- 4 packets transmitted, 0 received, 100% packet loss $ ping google.com ping: google.com: Temporary failure in name resolution
Refer to the exhibit. A technician runs two ping commands. Based on the output, which of the following is the MOST likely cause?
⚠ Common exam trap
The ITF+ exam often tests the distinction between loopback and external pings to trap candidates into assuming a firewall or DNS issue, when the real problem is a physical or data link layer failure that prevents any external communication.
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 network connection is down
The ping to the loopback address (127.0.0.1) succeeds, confirming that the TCP/IP stack is functioning correctly on the local host. However, the ping to the remote host (e.g., 8.8.8.8) fails, indicating that the issue lies beyond the local machine. Since the loopback test passes, the most likely cause is that the network connection (e.g., cable, NIC, switch port) is down, preventing any Layer 2 or Layer 3 communication with the external network.
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 default gateway is unreachable
Why it's wrong here
Same as B, but B is more general. Since both fail, the network is down.
- ✓
The network connection is down
Why this is correct
Both pings fail, indicating no network connectivity.
- ✗
DNS server is misconfigured
Why it's wrong here
IP ping also fails, so it's not just DNS.
- ✗
A firewall is blocking ICMP traffic
Why it's wrong here
Firewall might block ping, but DNS failure would not occur.
Visual reference
Go deeper
Related to this question
About these practice questions
Courseiva writes every FC0-U71 question from scratch — 988 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 by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This FC0-U71 practice question is part of Courseiva's free CompTIA 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 FC0-U71 exam.