281. What is a vector database?
- a) Optimized for storing and querying high-dimensional vector embeddings
- b) A database with vector graphics support
- c) A type of spatial database
- d) A database using vector clocks for synchronization
Answer: A - Vector databases like Pinecone or Weaviate enable similarity search for AI/ML applications.
282. What is database continuous verification?
- a) Real-time integrity checking using cryptographic proofs
- b) Ongoing performance monitoring
- c) Version control for databases
- d) Automated backup validation
Answer: A - Uses Merkle trees or zero-knowledge proofs to detect tampering instantly.
283. What is a blockchain database?
- a) Immutable ledger with cryptographic chain of records
- b) A database stored in blockchain blocks
- c) A distributed relational database
- d) A database for cryptocurrency transactions
Answer: A - Combines traditional database features with blockchain's tamper-evident properties.
284. What is database augmented analytics?
- a) AI-driven insights and automated data preparation
- b) Enhanced query visualization
- c) Analytics on encrypted data
- d) Predictive indexing
Answer: A - Uses ML to automate data discovery, pattern recognition, and insight generation.
285. What is a time-series database (TSDB)?
- a) Optimized for timestamped data points
- b) A database with temporal tables
- c> A versioned database
- d> A database tracking query execution times
Answer: A - Specialized for IoT, monitoring, and financial data with time-based compression.
286. What is database edge computing?
- a> Processing data near its source with local databases
- b> Geographical database distribution
- c> Database sharding
- d> Edge-case handling in queries
Answer: A - Reduces latency by running lightweight databases (e.g., SQLite) on edge devices.
287. What is a knowledge graph database?
- a> Stores relationships between entities as a semantic network
- b> A graph of database schemas
- c> A database documentation system
- d> A visualization tool
Answer: A - Powers semantic search and AI reasoning (e.g., Google Knowledge Graph).
288. What is database confidential AI?
- a> Machine learning on encrypted data
- b> Private AI model storage
- c> Secure database connections
- d> Anonymized training data
Answer: A - Enables model training without exposing raw sensitive data.
289. What is a serverless database?
- a> Fully managed with automatic scaling and no provisioning
- b> A database without backend servers
- c> A client-side database
- d> A peer-to-peer database
Answer: A - Services like FaunaDB or Aurora Serverless handle capacity dynamically.
290. What is database causal consistency?
- a> Preserves cause-effect relationships across distributed nodes
- b> Ensures chronological ordering
- c> A type of transaction isolation
- d> Consistent performance metrics
Answer: A - Stronger than eventual consistency but more available than linearizability.
291. What is a digital twin database?
- a> Virtual representation of physical systems with real-time sync
- b> A database replica
- c> A backup verification system
- d> A type of in-memory database
Answer: A - Used in IoT and manufacturing to simulate real-world entities.
292. What is database differential privacy?
- a> Adding statistical noise to query results to protect individuals
- b> Private database access
- c> Encrypted differential backups
- d> Version control for sensitive data
Answer: A - Enables aggregate analysis without exposing personal information.
293. What is a stream database?
- a> Processes infinite data sequences in real-time
- b> A database of video streams
- c> A type of log-structured database
- d> Continuous backup streaming
Answer: A - Systems like ksqlDB apply SQL to live data streams.
294. What is database neuromorphic computing?
- a> Brain-inspired architectures for pattern recognition
- b> Neural network storage
- c> Database optimization using AI
- d> Cognitive query processing
Answer: A - Specialized hardware for efficient similarity searches.
295. What is a quantum database?
- a> Leverages quantum algorithms for specialized queries
- b> A database storing quantum states
- c> A database running on quantum computers
- d> A theoretical database model
Answer: A - Uses quantum parallelism for tasks like unstructured search.
296. What is database intent-based management?
- a> Declares desired state while automation handles implementation
- b> Query optimization based on user intent
- c> Predictive indexing
- d> Natural language interfaces
Answer: A - Similar to Kubernetes operators for database ecosystems.
297. What is a fog database?
- a> Intermediate layer between edge devices and cloud
- b> An obscured database
- c> A weather data database
- d> A type of encrypted database
Answer: A - Provides localized processing for IoT networks.
298. What is database self-supervised learning?
- a> Automatically extracts patterns to optimize itself
- b> Learning without training data
- c> Automated database tutorials
- d> Query autocompletion
Answer: A - Uses inherent data structures as training signals.
299. What is a spatial-temporal database?
- a> Tracks moving objects through space and time
- b> A geographical database with history
- c> A type of time-series database
- d> Database migration tracking
Answer: A - Essential for GPS, logistics, and trajectory analysis.
300. What is database hyperautomation?
- a> Combines RPA, AI, and orchestration for end-to-end automation
- b> Extreme query optimization
- c> Automated database scaling
- d> Self-repairing databases
Answer: A - Automates everything from provisioning to troubleshooting.