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200-901 Practice Question: Verify the IP address of a remote server using DNS
A technician needs to verify the IP address of a remote server using DNS. Which command should be used on a Cisco IOS device?
⚠ Common exam trap
Cisco often tests the distinction between commands that incidentally perform DNS resolution (like `ping` or `traceroute`) and commands specifically designed for DNS queries (`nslookup`), leading candidates to choose `ping` because it shows the resolved IP in its output.
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
✓
nslookup server.example.com
The `nslookup` command is used to query DNS servers to resolve a hostname to an IP address. On a Cisco IOS device, `nslookup` sends a DNS query for the specified hostname and returns the corresponding IP address, making it the correct tool for verifying a remote server's IP via DNS.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
traceroute server.example.com
Why it's wrong here
Traceroute uses DNS but does not explicitly show resolution.
- ✗
show hosts server.example.com
Why it's wrong here
Show hosts displays static entries, not dynamic lookup.
- ✗
ping server.example.com
Why it's wrong here
Ping uses DNS but does not show the resolved address.
- ✓
nslookup server.example.com
Why this is correct
Performs DNS lookup and returns IP address.
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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.