Quick Answer
The answer is POST because the POST HTTP method is specifically designed to create new resources in REST API integrations. When a developer needs to send data from ServiceNow to an external system to generate a brand-new record at a given endpoint, POST is the correct choice, as it instructs the server to accept the payload and create a subordinate resource. On the ServiceNow Certified Application Developer CAD exam, this concept tests your understanding of REST fundamentals and HTTP method semantics, often appearing in scenario-based questions where you must distinguish creation from retrieval or modification. A common trap is confusing PUT with POST, but remember that PUT is for replacing an existing resource entirely, while POST is for creation. For a quick memory tip, think of the mnemonic “POST to Post a new item on a board”—you’re adding something new, not editing what’s already there.
This SNOW-CAD practice question tests your understanding of integrating and managing application data. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. 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.
A developer is designing a REST message to send data from ServiceNow to an external system. The external system expects a new resource to be created at a specific endpoint. Which HTTP method should be used?
PUT
Why wrong: PUT is for updating or replacing existing resources.
PATCH
Why wrong: PATCH is for partial updates.
GET
Why wrong: GET is for retrieving data, not creating.
POST
POST is the standard method for creating new resources.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
POST
Option B is correct: POST is used to create new resources. Option A is wrong because GET retrieves data. Option C is wrong because PUT updates/replaces. Option D is wrong because PATCH updates partially.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
PUT
Why it's wrong here
PUT is for updating or replacing existing resources.
PATCH
Why it's wrong here
PATCH is for partial updates.
GET
Why it's wrong here
GET is for retrieving data, not creating.
POST
Why this is correct
POST is the standard method for creating new resources.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
A small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
What to study next
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SNOW-CAD NAT questions on configuration and troubleshooting.
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FAQ
Integrating and managing application data — This question tests Integrating and managing application data — Static NAT maps one inside address to one outside address..
The correct answer is: POST — Option B is correct: POST is used to create new resources. Option A is wrong because GET retrieves data. Option C is wrong because PUT updates/replaces. Option D is wrong because PATCH updates partially.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related SNOW-CAD NAT questions on configuration and troubleshooting.
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 24, 2026
This SNOW-CAD practice question is part of Courseiva's free ServiceNow 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 SNOW-CAD exam.
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