easyMultiple ChoiceObjective-mapped
200-901 Practice Question: A developer is trying to access an internal…
A developer is trying to access an internal corporate web API at http://api.internal.company.com from their workstation, which has the IP configuration: IP address 192.168.1.100, subnet mask 255.255.255.0, default gateway 192.168.1.1, and DNS server 192.168.1.2. The developer can ping the DNS server (192.168.1.2) successfully, but when they try to curl the API endpoint, the command times out. The developer also confirms that the API server is up and reachable from other devices on the same subnet. Which action should the developer take to resolve this issue?
⚠ Common exam trap
Cisco often tests the distinction between local connectivity (same subnet) and routing (different subnet), leading candidates to mistakenly focus on DNS, firewall, or NIC issues when the real problem is a missing or misconfigured default gateway.
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
✓
Check the default gateway configuration. Ensure it is set to 192.168.1.1 and that the gateway can route traffic to the API's subnet.
The developer can ping the DNS server (192.168.1.2) successfully, which confirms that local network connectivity and DNS resolution are working. However, the curl command to the API endpoint times out, even though the API server is reachable from other devices on the same subnet. This indicates that the workstation can reach local resources but cannot route traffic to the API's subnet, pointing to a default gateway misconfiguration. Option D is correct because the default gateway (192.168.1.1) must be correctly configured and capable of forwarding traffic to the destination subnet; if it is missing or misconfigured, outbound traffic to non-local networks will fail.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Disable the local firewall on the workstation to allow all outbound traffic.
Why it's wrong here
While a firewall could block traffic, it is not the most likely cause since DNS queries succeed. Disabling the firewall is a security risk and not a targeted solution.
- ✗
Renew the DHCP lease to obtain a new IP address.
Why it's wrong here
Renewing DHCP may not resolve the issue since the IP configuration appears correct and DNS is reachable.
- ✗
Restart the network interface card (NIC) to reset the connection.
Why it's wrong here
Restarting the NIC might temporarily reset the connection, but it doesn't address the root cause of routing to the API subnet.
- ✓
Check the default gateway configuration. Ensure it is set to 192.168.1.1 and that the gateway can route traffic to the API's subnet.
Why this is correct
The default gateway is likely missing or misconfigured, preventing traffic to the API subnet. Verifying its setting and reachability resolves the issue.
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JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This 200-901 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 200-901 exam.