The answer is a set of FAQ documents or web pages as the knowledge source, the Azure AI Language Service resource, and a knowledge base or Bot Service endpoint. These three components are required because Custom Question Answering relies on a structured knowledge source to build its index, the Azure AI Language Service to host and manage the project, and a client interface—typically a Bot Service—to accept user queries and return answers. On the AI-102 exam, this question tests your understanding of the service’s architecture, specifically that it uses its own built-in index rather than Azure AI Search, which is a common distractor. A frequent trap is assuming Azure Functions are mandatory, but they are only optional for custom logic. To remember the core trio, think of the “three-legged stool”: source, service, and interface.
AI-102 Practice Question: Implement natural language processing solutions
This AI-102 practice question tests your understanding of implement natural language processing solutions. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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.
Which THREE components are required to build a custom question-answering solution using Azure AI Language Service?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
A bot channel registration or web app to interact with users
The correct answers are A, C, and E. A provides the knowledge base. C is the service required. E provides the interface for users to ask questions. B (Azure AI Search) is not required because Custom Question Answering has its own index. D (Azure Functions) is optional.
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.
✓
A bot channel registration or web app to interact with users
Why this is correct
A client interface is needed for users to submit questions.
Related concept
Read the scenario before looking for a memorised answer.
✓
An Azure AI Language Service resource
Why this is correct
The Language Service hosts the Custom Question Answering feature.
Related concept
Read the scenario before looking for a memorised answer.
✓
A set of FAQ documents or web pages as the knowledge source
Why this is correct
Knowledge sources provide the content for Q&A.
Related concept
Read the scenario before looking for a memorised answer.
✗
An Azure AI Search index
Why it's wrong here
Custom Question Answering uses its own built-in index.
✗
An Azure Functions app for serverless compute
Why it's wrong here
Azure Functions is not required for the core Q&A functionality.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Many certification questions include familiar terms but test a specific constraint. Read the exact wording before choosing an answer that is generally true but wrong for this case.
Detailed technical explanation
How to think about this question
This question should be treated as a scenario, not a definition check. Identify the problem, the constraint and the best action. Then compare each option against those facts.
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.
Use explanations to understand the rule behind the answer.
TExam Day Tips
→Underline the problem statement mentally.
→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
An e-commerce site experiences heavy traffic on Black Friday and near-zero traffic during off-peak weeks. Rather than provisioning permanent large VMs, the team uses auto-scaling groups that add capacity automatically under load and reduce it overnight. Questions like this test whether you understand elasticity, availability zones, and cloud compute scaling patterns.
What to study next
Got this wrong? Here's your next step.
Identify which AI-102 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
Implement natural language processing solutions — This question tests Implement natural language processing solutions — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: A bot channel registration or web app to interact with users — The correct answers are A, C, and E. A provides the knowledge base. C is the service required. E provides the interface for users to ask questions. B (Azure AI Search) is not required because Custom Question Answering has its own index. D (Azure Functions) is optional.
What should I do if I get this AI-102 question wrong?
Identify which AI-102 exam domain this question belongs to, then review the specific concept being tested. Practise related questions in that domain and focus on understanding why each wrong answer is tempting — not just why the correct answer is right.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
These questions test the same concept from different angles. Work through them to make sure you can recognise it however the exam phrases it.
Variation 1. A developer is creating a custom question answering project in Azure AI Language. The knowledge base contains product manuals in PDF format. Which step is essential before importing the PDFs?
easy
✓ A.Ensure PDFs are in a supported format and accessible
B.Create an Azure AI Search index
C.Deploy a QnA Maker service
D.Translate PDFs to English
Why A: Option D is correct because PDFs must be in a supported format and accessible via URL or uploaded. Option A is wrong because QnA Maker is deprecated in favor of custom question answering. Option B is wrong because Azure AI Search is not required. Option C is wrong because translation is not necessary.
Variation 2. Your company uses a custom question answering knowledge base in Azure AI Language to answer employee questions about HR policies. You need to update the knowledge base with a new set of FAQ documents that contain tables and images. What is the best way to ingest the new content?
medium
A.Use Azure AI Search to index the documents and then import the index into the knowledge base.
B.Manually add the new QnA pairs using the Language Studio portal.
C.Use the Azure AI Language REST API to add the new QnA pairs programmatically.
✓ D.Use Microsoft Foundry Copilot Studio to automatically ingest the documents into the knowledge base.
Why D: Option C is correct because Microsoft Foundry Copilot Studio can automatically ingest structured content from documents, including tables and images, into the knowledge base. Option A is wrong because manual QnA pairs are time-consuming and error-prone. Option B is wrong because the REST API can only add QnA pairs, not directly ingest documents. Option D is wrong because Azure AI Search is for indexing, not for adding content to the knowledge base.
Variation 3. Which THREE components are required to build a custom question answering solution using Azure AI Language?
medium
A.A Language Understanding (LUIS) app
✓ B.A project in Azure AI Language
✓ C.An endpoint to query the knowledge base
D.An Azure AI Bot Service resource
✓ E.A knowledge base with question and answer pairs
Why B: A custom question answering project requires a project in Azure AI Language, a knowledge base containing Q&A pairs, and an endpoint for inference. A LUIS app is for language understanding, not QnA. An Azure AI Bot Service is optional for deploying a bot.
Variation 4. You are deploying a question answering solution using Azure AI Language. The solution must be able to provide answers from a set of frequently asked questions (FAQs) in PDF format. What should you do?
medium
A.Use Azure AI Search with cognitive skills.
✓ B.Create a custom question answering project and add the PDF as a source.
C.Use Azure OpenAI with a system prompt containing the PDFs.
D.Use the pre-built question answering in Azure AI Language.
Why B: Option C is correct because custom question answering can ingest PDFs and extract Q&A pairs. Option A is incorrect because Azure AI Search is for search, not question answering. Option B is incorrect because Azure OpenAI can answer questions but requires prompt engineering and may not use the PDFs directly. Option D is incorrect because pre-built question answering is for common scenarios, not custom PDFs.
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
This AI-102 practice question is part of Courseiva's free Microsoft 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 AI-102 exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.