Explore foundational concepts of Azure AI and Cognitive Services with this beginner-friendly quiz. Learn about key features, real-world scenarios, and basic terminology to build your understanding of cloud-based artificial intelligence solutions.
Which type of cognitive service is best suited for automatically extracting key phrases from a large collection of user reviews?
Explanation: Text Analytics is designed to extract information like key phrases, entities, and sentiment from written content, making it ideal for analyzing user reviews. Speech Recognition focuses on converting spoken words into text, which does not extract key phrases from written data. Image Classification is used for analyzing visual content, not text. Language Translation translates text from one language to another but does not extract phrases or sentiment.
If a developer needs to convert recorded conversations into text for search and analysis, which service should they use?
Explanation: Speech-to-Text converts spoken audio into written text, which fits the need for turning conversations into searchable content. Face Detection analyzes images or videos to identify human faces, not audio. Optical Character Recognition extracts text from images, not from audio recordings. Sentiment Analysis is used after text is generated to interpret emotions or opinions, not for transcription.
A company wants to automatically detect objects such as vehicles and trees in photos taken by drones. Which service should be used?
Explanation: Image Classification identifies and categorizes objects within images, making it best suited for detecting vehicles and trees in photos. Text Summarization works on summarizing long pieces of text, not images. Voice Synthesis, also called Text-to-Speech, reads out text but does not process visuals. Natural Language Processing deals with information in text, not images.
Which service would you use to translate a message from Portuguese to English in a chat application?
Explanation: Language Translation enables converting text from one language to another, which is exactly what is needed for translating chat messages. Entity Recognition identifies information such as names and locations in text but does not provide translation. Speech Identification relates to recognizing individual speakers. Image Analysis is used for processing images rather than translating languages.
A mobile app wants to let users scan printed receipts and pull out totals and dates automatically. Which AI service helps with this scenario?
Explanation: Optical Character Recognition (OCR) provides the ability to extract typed or handwritten text from images like scanned receipts, enabling further processing such as gathering totals or dates. Speech Synthesis is unrelated, as it converts text to spoken words. Text Analytics works on existing text, not images. Intent Recognition identifies patterns in text for applications like chatbots, not for extracting data from images.
What cognitive service would help a business automatically determine if tweets about their new product are positive or negative?
Explanation: Sentiment Analysis evaluates textual input to identify emotions such as positivity or negativity, making it suitable for analyzing public opinion in social media posts. Speech Detection refers to identifying or transcribing spoken words. Object Tracking is used for following objects in visual media. Language Generation creates new text but does not analyze existing sentiment.
Which service is primarily used to build a chatbot capable of understanding and responding to customer inquiries in natural language?
Explanation: Conversational AI is designed for building chatbots and virtual assistants that interpret and respond to user queries using natural language. Speech-to-Text converts speech to written words but does not handle conversation flow. Face Recognition identifies faces in images or videos, which is unrelated. Optical Data Recognition is another term for extracting text from images and is not suitable for chatbots.
If an app needs to blur faces in uploaded photos for privacy reasons, which AI service should they use?
Explanation: Face Detection locates and identifies faces within images, allowing applications to subsequently blur or mask them for privacy. Text Analysis examines written content, not images. Audio Transcription works on audio files, converting speech to written form. Translation Service handles language conversions, not image processing.
Which statement is true about integrating cognitive services into a web application?
Explanation: Cognitive services are cloud-based and typically accessed via APIs over the internet, allowing easy integration with various application types, including web applications. They do not require bulky local software downloads. Cognitive services are platform-agnostic and can be integrated with both web and mobile applications. There is no requirement to use low-level languages like assembly; modern programming languages and REST APIs are commonly used.
A farmer wants an app to recognize different types of crops in photos taken from their field. Which type of service would be most appropriate?
Explanation: Custom Vision services allow users to train AI models to recognize user-defined object categories, such as various crop types. Text Summarization deals with summarizing longer documents, not processing images. Speech Synthesis converts text to audio, which is irrelevant in this context. Language Detection identifies the language of written text, not image content.