hardMultiple ChoiceObjective-mapped
FC0-U71 Practice Question: Refer to the exhibit
Exhibit
Refer to the exhibit. C:\Users\Admin> ipconfig /all Ethernet adapter Local Area Connection: Connection-specific DNS Suffix . : contoso.com IPv4 Address. . . . . . . . . . . : 192.168.1.10 Subnet Mask . . . . . . . . . . . : 255.255.255.0 Default Gateway . . . . . . . . . : 192.168.1.1 DHCP Enabled. . . . . . . . . . . : Yes DHCP Server . . . . . . . . . . . : 192.168.1.1 DNS Servers . . . . . . . . . . . : 192.168.1.1
Refer to the exhibit. A technician runs ipconfig /all on a user's computer. The user can access the internet but cannot browse to any websites by domain name. What is the most likely cause?
⚠ Common exam trap
A common mix-up: candidates assume internet access means all network services are working, but DNS is a separate service that can fail independently of IP connectivity, and the question specifically tests whether you can isolate the symptom of name resolution failure from general connectivity.
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 DNS server address is incorrect or not functioning for external lookups.
The user can access the internet (IP connectivity works) but cannot browse by domain name, which indicates that DNS resolution is failing. The `ipconfig /all` output would show a DNS server address; if that address is incorrect or the DNS server cannot perform external lookups, the computer cannot translate domain names to IP addresses, even though other network functions (like DHCP and IP routing) are working correctly.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
DHCP is disabled on the computer.
Why it's wrong here
DHCP is enabled as shown.
- ✓
The DNS server address is incorrect or not functioning for external lookups.
Why this is correct
Router may not provide DNS resolution for external domains.
- ✗
The IP address is a private address and cannot access the internet.
Why it's wrong here
Private IPs can access internet through NAT.
- ✗
The subnet mask should be 255.255.0.0.
Why it's wrong here
A subnet mask of 255.255.0.0 would expand the broadcast domain and alter routing behaviour, but the scenario describes a failure to resolve domain names while internet connectivity exists. The issue lies with DNS resolution, not with IP addressing or subnet boundaries. This option is tempting because an incorrect subnet mask can prevent internet access entirely in other scenarios, such as when a host cannot reach its default gateway due to mismatched network IDs, making it a correct fix for connectivity failures caused by misaligned subnetting.
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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.