Networking Know-How

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Across
  1. 1. A virtual endpoint for network communication. Different services use specific port numbers, like 80.
  2. 4. The wireless alternative to Ethernet. The 802.11 family of radio-based networking standards.
  3. 5. Routes data between networks. Most home "routers" are actually routers, switches, and wireless access points in one unit.
  4. 7. Network Address Translation. Lets multiple devices share one public IP address. A key router feature.
  5. 8. Connects multiple wired devices on a network so they can talk to each other.
  6. 9. A Virtual LAN. Partitions a physical network into separate virtual networks for improved management and security.
  7. 11. Loss The percentage of data packets that get lost in transit. Can noticeably degrade voice and video quality.
  8. 12. A Local Area Network. A small network confined to one area, like your home or office.
  9. 13. The Domain Name System. Translates human-friendly domain names like google.com into IP addresses.
  10. 15. Variation in latency. Too much can cause choppy audio and laggy video.
  11. 17. A unique string of numbers that identifies each device on a network. Like a virtual return address.
  12. 19. Converts signals between analog (like cable or phone lines) and digital (like Ethernet). The bridge between your home network and the internet.
  13. 20. Having multiple paths for data to travel. Helps maintain connectivity if one path fails.
Down
  1. 2. The actual amount of data that gets sent over a connection in a given time. Less than bandwidth due to overhead.
  2. 3. Monitors traffic between networks to block suspicious activity. Can be hardware or software.
  3. 6. Quality of Service. Prioritizes certain types of network traffic, like voice or video, for a smoother experience.
  4. 10. A permanent ID number assigned to a device's network card when it's manufactured.
  5. 14. A wired networking technology for connecting devices in a LAN, usually via Cat5 or Cat6 cables.
  6. 16. How long it takes data to get from source to destination. Lower latency means snappier connections.
  7. 18. Defines which part of an IP address identifies the network and which part identifies the device.
  8. 21. Automatically assigns IP addresses to devices on a network. Saves you from configuring them manually.