D684 Introduction to Computer Science - Set 5 - Part 3

Correct Answer: Radio frequency tracking

Radio frequency tracking provides precise position data for fast-moving drones, enabling real-time race monitoring and scoring.
Option a is incorrect because manual tracking cannot follow multiple high-speed drones through complex three-dimensional courses simultaneously.
Option c is incorrect because sound tracking is too slow and imprecise for fast-moving drones in noisy environments.
Option d is incorrect because temperature tracking doesn't provide position information needed for drone race monitoring.

Correct Answer: Static analysis

Static analysis examines code without execution, identifying security vulnerabilities like injection risks before deployment to production.
Option b is incorrect because dynamic analysis requires running code, potentially too late to prevent security issues.
Option c is incorrect because manual analysis is time-consuming and might miss subtle security vulnerabilities in code.
Option d is incorrect because random analysis would miss most vulnerabilities, providing inadequate security review coverage.

Correct Answer: Vibration monitoring

Vibration monitoring detects balance changes from ice accumulation, alerting operators before damage or efficiency loss occurs.
Option b is incorrect because color monitoring might not detect clear ice and requires visual access to blades.
Option c is incorrect because size monitoring is impractical for rotating turbine blades at height in weather conditions.
Option d is incorrect because network monitoring tracks data communication, not physical ice formation on turbine blades.

Correct Answer: Auto exposure

Auto exposure analyzes scene brightness and adjusts camera settings automatically, capturing properly exposed photos in varying light.
Option a is incorrect because manual exposure requires user knowledge and adjustment, impractical for quick smartphone photography.
Option c is incorrect because fixed exposure fails in varying light conditions, producing overexposed or underexposed photos.
Option d is incorrect because random exposure would produce unpredictable results, most photos being incorrectly exposed.

Correct Answer: Blockchain tracking

Blockchain tracking creates immutable records at each supply chain step, making counterfeit insertion detectable through verification.
Option a is incorrect because batch tracking groups products but doesn't prevent record tampering to insert counterfeits.
Option c is incorrect because manual tracking is error-prone and allows record manipulation to hide counterfeit products.
Option d is incorrect because visual tracking relies on appearance, which sophisticated counterfeits can replicate convincingly.

Correct Answer: Pattern learning

Pattern learning identifies recurring daily and weekly routines, automatically adjusting home settings to match family habits.
Option a is incorrect because supervised learning requires labeled training data that families won't provide for routines.
Option c is incorrect because manual programming can't capture the complexity and variability of family routine patterns.
Option d is incorrect because random adjustment would disrupt comfort rather than matching family routine preferences.

Correct Answer: Frequency analysis

Frequency analysis identifies characteristic frequency patterns that distinguish natural earthquakes from artificial vibration sources like construction.
Option b is incorrect because color analysis applies to visual data, not seismic vibration signal processing.
Option c is incorrect because size analysis doesn't differentiate vibration sources, only measuring magnitude without identifying origin.
Option d is incorrect because text analysis processes written content, completely unrelated to seismic signal identification.

Correct Answer: Sentiment analysis

Sentiment analysis identifies emotional tone in messages, detecting frustration that indicates need for human agent intervention.
Option b is incorrect because message length doesn't reliably indicate frustration since angry messages vary in length.
Option c is incorrect because typing speed might indicate urgency but doesn't specifically identify customer frustration levels.
Option d is incorrect because format analysis examines structure, not the emotional content indicating customer frustration.

Correct Answer: Satellite bursts

Satellite burst transmission sends data in short powerful signals that penetrate storm conditions while conserving power.
Option a is incorrect because continuous transmission drains batteries quickly and signals may be blocked by storms.
Option c is incorrect because underwater cables restrict buoy movement and can break in extreme weather conditions.
Option d is incorrect because line-of-sight communication fails in storms and requires nearby receivers within view.

Correct Answer: Adaptive pattern

Adaptive patterns adjust routes based on detected obstacles, ensuring complete coverage while avoiding toys and pets safely.
Option a is incorrect because random patterns miss areas and don't efficiently avoid obstacles, creating safety risks.
Option b is incorrect because systematic patterns don't adapt to unexpected obstacles like moving pets or toys.
Option d is incorrect because fixed patterns cannot respond to varying obstacle positions, risking damage or injury.