Exams / CLF-C02 / AI, machine learning and analytics / Question 1
CLF-C02 practice question: AI, machine learning and analytics (1 of 3)
Cloud Technology and Services A free question from our original CLF-C02 practice exam. Try it, then open the answer to see why each option is right or wrong.
A company is building a voice assistant for its customer helpline. It needs to turn callers' spoken words into text and to read replies back to callers in a natural-sounding voice. Which TWO services should it use? (Choose two.)
Choose two answers.
- AA. Amazon Transcribe
- BB. Amazon Comprehend
- CC. Amazon Translate
- DD. Amazon Rekognition
- EE. Amazon Polly
Show the answer and explanation
Answers: A, E
- A. Right: Correct. Transcribe is an automatic speech recognition service that converts speech to text.
- B. Wrong: Comprehend analyses text for sentiment, entities and key phrases. It does not convert between speech and text.
- C. Wrong: Translate converts text from one language to another. It does not handle audio.
- D. Wrong: Rekognition analyses images and video. It does not work with speech.
- E. Right: Correct. Polly converts text into lifelike speech.
Explanation
Amazon Transcribe turns speech into text, and Amazon Polly turns text into speech, so together they cover both directions of a spoken conversation. Other AI services handle different jobs: Comprehend analyses text, Translate translates it, Rekognition analyses images and video, and Lex builds conversational chatbots.
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