200-901 Infrastructure and Automation Practice Question
This 200-901 practice question tests your understanding of infrastructure and automation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An organization implements zero-touch provisioning (ZTP) for new Cisco routers using DHCP and TFTP. The provision script is not being executed even though the device obtains an IP address. The DHCP server logs show the option 67 (bootfile-name) and option 150 (tftp-server) are set. What is the most probable reason?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The script file name in option 67 does not match the actual file on the TFTP server
Option B is correct because the most common reason for a ZTP script not executing after a device obtains an IP address is a mismatch between the bootfile name specified in DHCP option 67 and the actual filename on the TFTP server. Even if the DHCP server logs show option 67 and 150 are set, the router will attempt to download the file specified in option 67; if that file does not exist or is named differently on the TFTP server, the download fails and the script is not executed.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
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 DHCP server is not authoritative
Why it's wrong here
Authoritative status does not affect ZTP script execution.
✓
The script file name in option 67 does not match the actual file on the TFTP server
Why this is correct
A mismatch in filename prevents the device from loading the script.
Related concept
Read the scenario before looking for a memorised answer.
✗
The TFTP server IP is unreachable from the router
Why it's wrong here
If the TFTP server were unreachable, the device would not obtain the script, but DHCP options are set correctly.
✗
The router does not support ZTP
Why it's wrong here
Most modern Cisco routers support ZTP.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Cisco often tests the distinction between DHCP options being configured correctly on the server versus the actual file availability on the TFTP server, leading candidates to incorrectly blame network connectivity (option C) or DHCP server authority (option A) when the real issue is a simple filename mismatch.
Detailed technical explanation
How to think about this question
In Cisco ZTP, the router boots with a factory-default configuration that triggers a DHCP request. The DHCP server responds with option 67 (bootfile name) and option 150 (TFTP server address). The router then sends a TFTP read request for the file specified in option 67. If the file is missing or the name is incorrect (e.g., case-sensitive mismatch or typo), the TFTP server returns an error (e.g., 'File not found'), and the router falls back to its default behavior without executing the script. This is a common misconfiguration in real-world deployments where operators forget to match the exact filename or path.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the 200-901 exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Infrastructure and Automation — This question tests Infrastructure and Automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The script file name in option 67 does not match the actual file on the TFTP server — Option B is correct because the most common reason for a ZTP script not executing after a device obtains an IP address is a mismatch between the bootfile name specified in DHCP option 67 and the actual filename on the TFTP server. Even if the DHCP server logs show option 67 and 150 are set, the router will attempt to download the file specified in option 67; if that file does not exist or is named differently on the TFTP server, the download fails and the script is not executed.
What should I do if I get this 200-901 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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