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Across
  1. 2. Duplication for fault tolerance
  2. 3. Cryptocurrency ledger technology
  3. 6. Starting a system by loading software
  4. 8. Protects networks from threats
  5. 9. Structure of a database, including tables, views, and indexes
Down
  1. 1. Data structure with Last-In-First-Out order
  2. 2. Device that connects multiple networks
  3. 4. Manages hardware and software
  4. 5. Operation to combine rows from two or more tables
  5. 7. Set of vertices connected by edges