(71329) AQA A-Level Computer Science - Networks

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Across
  1. 2. An encryption method using a public and private key pair
  2. 4. A protocol that automatically assigns IP addresses to devices
  3. 7. A unique numerical identifier for a device on a network
  4. 9. The portion of an IP address that identifies a device within a network
  5. 10. A firewall technique that blocks packets based on rules such as port numbers
  6. 12. An algorithm used by routers to calculate the shortest path
  7. 14. The part of a packet that carries the actual user data
  8. 18. A technique that redirects incoming traffic to a specific internal device
  9. 22. A value used to identify the network portion of an IP address
  10. 25. A method for securely generating a shared symmetric key
  11. 29. The 32-bit IP addressing standard written in dotted decimal form
  12. 32. The part of a packet containing control information such as addresses and TTL
  13. 33. The key that can be shared openly to encrypt data
  14. 35. A device that forwards data packets between networks using routing tables
  15. 36. A device that translates between different network protocols
  16. 37. A firewall approach that tracks active connections
  17. 38. An encryption method where the same key is used to encrypt and decrypt data
Down
  1. 1. A method of data transmission where messages are split into packets that may take different routes
  2. 3. An organisation that manages the allocation of IP addresses and domain names
  3. 5. A digitally signed document that verifies ownership of a public key
  4. 6. A global network of interconnected networks that communicate using TCP/IP
  5. 8. The complete domain name including all levels and the top-level domain
  6. 11. A distributed system that resolves domain names into IP addresses
  7. 12. A human-readable name that maps to an IP address
  8. 13. A formatted unit of data transmitted across a network
  9. 15. The global organisation responsible for coordinating internet identifiers
  10. 16. A single movement of a packet from one router to another
  11. 17. A security system that controls incoming and outgoing network traffic
  12. 19. A data structure used by routers to decide where to forward packets
  13. 20. A smaller network created by dividing a larger network
  14. 21. A value that limits how many hops a packet can take before being discarded
  15. 23. An IP address that can be forwarded across the public internet
  16. 24. The structure used to organise domain names
  17. 26. The 128-bit IP addressing standard introduced to overcome address exhaustion
  18. 27. An IP address reserved for private networks
  19. 28. An intermediary server that hides client IP addresses and may cache content
  20. 30. The portion of an IP address that identifies the network
  21. 31. The full address used to locate a resource on the internet
  22. 33. The secret key used to decrypt data or create digital signatures
  23. 34. A process that allows multiple devices to share one public IP address
  24. 37. A cryptographic value used to authenticate the sender and verify integrity