Question 29
Domain 4: Describe Azure AI services for natural language processing and speechWhich Azure service would you use to build a model that identifies the sentiment of customer reviews?
Correct answer: A
Explanation
Azure Text Analytics includes sentiment analysis, which is used to identify whether text expresses positive, negative, or neutral sentiment. Customer reviews are unstructured text, so this service is designed to "identify the sentiment" in them without building a custom model from scratch.
Why each option is right or wrong
A. Azure Text Analytics
Azure Text Analytics is the Azure AI Language service that provides prebuilt text analysis capabilities, including sentiment analysis for unstructured natural-language input such as customer reviews. Its sentiment API returns document- and sentence-level labels and confidence scores for positive, neutral, negative, and mixed sentiment, so it directly matches the requirement to identify sentiment without training a custom model.
B. Azure Speech Services
C. Azure Translator
D. Azure Form Recognizer