Advanced Platform Algorithms and Data

1. What is "A/B testing at algorithmic scale" on social platforms?

• A. Standard A/B testing
• B. Testing thousands of content or algorithm variations simultaneously across millions of users to optimize platform metrics ✓
• C. A type of ad testing
• D. A content moderation approach

💡 Platforms continuously run massive A/B tests on algorithm changes, UI features, and content ranking to optimize engagement and retention metrics.

2. What is "TikTok's interest graph" vs Facebook's "social graph"?

• A. They are the same concept
• B. TikTok recommends based on interests and behavior; Facebook connects based on real-world relationships ✓
• C. TikTok uses social connections; Facebook uses interests
• D. A type of advertising targeting

💡 TikTok's interest graph recommends content based on viewing behavior regardless of social connections. Facebook's social graph connects people based on real relationships.

3. What is "platform regulation" under the EU Digital Services Act (DSA)?

• A. A type of platform feature
• B. EU legislation requiring large platforms to increase transparency, remove illegal content, and share algorithmic data with researchers ✓
• C. A type of content moderation AI
• D. A privacy regulation only

💡 The DSA requires very large platforms (Twitter, Meta, TikTok) to publish transparency reports, allow algorithm audits, and give users more control over recommendations.

4. What is "social media data harvesting" and why is it controversial?

• A. Collecting user-uploaded images
• B. Mass collection of user data beyond what users consent to, used for profiling, targeting, or selling to third parties ✓
• C. A standard analytics practice
• D. A type of social listening

💡 Data harvesting controversially collects vast user data (behavior, connections, private info) for advertising or sale — the Cambridge Analytica scandal exemplified this.

5. What is "multi-armed bandit algorithm" in content recommendation?

• A. A gaming algorithm
• B. An algorithm dynamically balancing exploration of new content and exploitation of known high-performing content ✓
• C. A type of A/B test
• D. A content scheduling algorithm

💡 Multi-armed bandit algorithms continuously test new content variations while directing more traffic to higher-performing options without rigid A/B test phases.

6. What was the "Cambridge Analytica scandal"?

• A. A social media hack
• B. Harvesting of 87 million Facebook users' data without consent for political profiling and micro-targeted advertising ✓
• C. A data breach of Facebook's servers
• D. A hacking of political campaigns

💡 Cambridge Analytica harvested data from 87 million Facebook users via a quiz app, using it for psychographic profiling to target voters in the 2016 US election.

7. What is "ActivityPub" protocol?

• A. A social media app
• B. An open, decentralized protocol enabling different social media servers to communicate and share content ✓
• C. A type of social media API
• D. A content distribution network

💡 ActivityPub is the W3C standard protocol powering federated social networks like Mastodon, Pixelfed, and PeerTube, enabling cross-platform communication.

8. What is "social media API rate limiting"?

• A. Limiting social media usage
• B. Restricting how many API requests third-party developers can make to a platform's API within a time window ✓
• C. A type of account restriction
• D. A data protection measure

💡 API rate limiting controls the frequency of requests developers can make, preventing abuse, server overload, and unauthorized mass data collection.

9. What is "content moderation at scale" and why is it challenging?

• A. Moderating small communities
• B. Reviewing millions of posts daily for policy violations — challenging due to volume, context sensitivity, and linguistic diversity ✓
• C. A type of algorithm
• D. A community management strategy

💡 Platforms process billions of pieces of content daily, requiring AI combined with human review to detect violations across hundreds of languages and cultural contexts.

10. What does "dwell time" mean in social media algorithms?

• A. Account age
• B. How long a user spends viewing a piece of content — a key signal for algorithmic ranking ✓
• C. Time between posts
• D. Profile viewing time

💡 Dwell time measures how long users engage with content before scrolling — longer dwell time signals quality content, boosting algorithmic distribution.

11. What is "data portability" in social media regulation?

• A. Moving your phone data
• B. The right of users to export their social media data and move it to another platform ✓
• C. A type of privacy setting
• D. A data backup feature

💡 Data portability (mandated by GDPR) gives users the right to export their personal data in a usable format to switch platforms without losing their history.

12. What is "social media fingerprinting"?

• A. Creating social media profiles
• B. Identifying users across platforms using unique behavioral patterns even without account linking ✓
• C. A type of profile verification
• D. A content tagging system

💡 Behavioral fingerprinting identifies users across different platforms by analyzing unique patterns in typing speed, posting times, and language use.

13. What is "token-based authentication" in social media APIs?

• A. Password authentication
• B. Using access tokens (OAuth) instead of credentials to authenticate third-party app access to user accounts ✓
• C. A type of encryption
• D. A type of two-factor auth

💡 Token-based auth (OAuth) grants third-party apps limited, revocable access to user accounts without exposing credentials — the standard for social media APIs.

14. What is "network effect" in social media growth?

• A. An effect on computer networks
• B. The phenomenon where a platform becomes more valuable as more people use it ✓
• C. A type of viral marketing
• D. An algorithmic effect

💡 Network effects mean each new user adds value for existing users — more people on Facebook makes it more useful for everyone, creating a self-reinforcing growth loop.

15. What is "coordinated inauthentic behavior" on social media?

• A. Authentic group collaboration
• B. Organized efforts by accounts working together to manipulate public opinion while hiding their true nature and coordination ✓
• C. A type of viral marketing
• D. A community management practice

💡 Coordinated inauthentic behavior involves networks of fake or compromised accounts working together to amplify narratives, spread disinformation, or manipulate trends.

16. What is "graph neural network" used for in social media?

• A. Drawing social network diagrams
• B. Processing graph-structured social network data to improve recommendations and link prediction ✓
• C. A type of content moderation
• D. A network security tool

💡 Graph neural networks process the complex relationship structures of social networks to improve friend recommendations, content discovery, and fraud detection.

17. What is "engagement bait" and why do platforms penalize it?

• A. Genuinely engaging content
• B. Posts explicitly asking users to like, share, or comment to manipulate algorithmic distribution ✓
• C. A type of paid promotion
• D. A content marketing strategy

💡 Engagement bait explicitly solicits interactions ("Like if you agree!") manipulating algorithms. Platforms penalize it by reducing organic reach.

18. What is "collaborative filtering" in social media recommendation systems?

• A. Users filtering spam together
• B. An algorithm recommending content based on preferences of similar users ✓
• C. A content moderation technique
• D. A type of A/B testing

💡 Collaborative filtering recommends content by finding users with similar taste patterns — "users who liked X also liked Y" — used by YouTube and Netflix.

19. What is "social graph analysis"?

• A. Drawing social network diagrams
• B. Analyzing the structure of connections and relationships in a social network to identify influencers and communities ✓
• C. A type of sentiment analysis
• D. A content performance metric

💡 Social graph analysis maps relationships between users to identify key influencers, community clusters, information flow patterns, and network vulnerabilities.

20. What is "federated social media"?

• A. Government-controlled social media
• B. Decentralized social networks using open protocols allowing different platforms to interact ✓
• C. A type of social media company
• D. A verified social media system

💡 Federated social media (Mastodon, ActivityPub) uses open protocols allowing users on different servers to interact — no single company controls the network.