Drag a concept onto its matching description — or click a concept then click the description.
Concepts
Matches
Natural language processing
Language translation
Text-to-speech
Speech-to-text
Conversational chatbots
MLS-C01 Modeling Practice Question
Match each AWS AI service to its capability.
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
✓
Amazon Comprehend: Extract insights and relationships from text
The correct matches are: Amazon Comprehend for extracting insights from text, Amazon Lex for building conversational interfaces, and Amazon Polly for text-to-speech. Distractors swap capabilities between services.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
Amazon Comprehend: Extract insights and relationships from text
Why this is correct
Amazon Comprehend is a natural language processing (NLP) service that uses machine learning to extract insights and relationships from text.
- ✓
Amazon Lex: Build conversational interfaces using voice and text
Why this is correct
Amazon Lex is a service for building conversational interfaces into any application using voice and text, using the same technology as Alexa.
- ✓
Amazon Polly: Turn text into lifelike speech
Why this is correct
Amazon Polly is a text-to-speech service that uses advanced deep learning technologies to synthesize speech that sounds like a human voice.
- ✗
Amazon Lex: Translate text between languages
Why it's wrong here
This is incorrect because Amazon Lex is used for conversational interfaces, not translation. Amazon Translate is the service for language translation.
- ✗
Amazon Polly: Convert speech to text
Why it's wrong here
This is incorrect because Amazon Polly is text-to-speech, not speech-to-text. Amazon Transcribe is the service for converting speech to text.
Go deeper
Related to this question
About these practice questions
Courseiva writes every MLS-C01 question from scratch — 1,672 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This MLS-C01 practice question is part of Courseiva's free Amazon Web Services 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 MLS-C01 exam.