Common AI Technologies in Daily Life AIE Practice Questions (Page 5)

Questions 21–25

1. 21application · medium · select all that apply

   A user interacts with a smart speaker to play music, asks for a weather forecast, and later receives a personalized playlist recommendation. Which of the following AI technologies are directly involved in this experience? Select all that apply.

   • ASpeech recognition to convert the user's voice into text
   • BNatural language processing to understand the user's spoken requests
   • CRecommendation algorithms to generate the personalized playlist
   • DComputer vision to recognize the user's face
   Check answers Discussion Select an answer first
2. 22foundation · easy

   What is the primary role of natural language processing (NLP) in a virtual assistant?

   • ATo convert spoken language into text and understand its meaning
   • BTo manage the device's battery life
   • CTo generate high-quality images from text descriptions
   • DTo encrypt user data during transmission
   Reveal Solution Discussion Select an answer first
4. 23application · medium

   A fitness wearable tracks a user's heart rate, sleep patterns, and physical activity. The device aims to detect irregular heart rhythms and provide personalized daily activity goals. Which AI techniques are most directly involved?

   • ANatural language processing to interpret voice commands and neural machine translation to display results in multiple languages
   • BCollaborative filtering to recommend exercises and content-based filtering to suggest diets
   • CAnomaly detection to identify irregular heart rhythms and machine learning to generate personalized goals from historical data
   • DComputer vision to analyze workout form and reinforcement learning to optimize sleep schedules
   Reveal Solution Discussion Select an answer first
5. 24application · medium

   A social media platform wants to increase user engagement by showing each user the most relevant posts. The platform has data on user interactions (likes, shares, time spent) and post content (text, images, topics). Which combination of AI techniques would best personalize the feed?

   • ANeural machine translation to translate posts and query understanding to rank search results
   • BCollaborative filtering on interaction patterns and content-based filtering on post topics
   • CSpam filtering to remove low-quality posts and adaptive difficulty to adjust post complexity
   • DObject detection to identify objects in images and path planning to arrange posts in the feed
   Reveal Solution Discussion Select an answer first
6. 25expert · hard

   A smart home system includes a thermostat, lighting, and a security camera. The homeowner wants the system to learn their daily routine and automatically adjust settings. However, the homeowner is concerned about privacy because the security camera records video. Which approach best addresses the learning requirement while minimizing privacy risk?

   • AUpload all video to the cloud for analysis to improve the learning accuracy
   • BDisable the security camera entirely to protect privacy
   • CProcess video locally on the camera to detect motion and only send anonymized metadata to the cloud for learning routines
   • DUse the camera only for live viewing and do not use it for learning routines
   Reveal Solution Discussion Select an answer first