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AP Computer Science Principles- Big Idea 1 Latest Update 100% Pass How does data redundancy contribute to the reliability of the Internet? Data redundancy involves storing copies of data in multiple locations. This ensures that if one copy is lost or corrupted, other copies are still available...

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  • August 28, 2024
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  • 2024/2025
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AP Computer Science Principles- Big
Idea 1 Latest Update 100% Pass
How does data redundancy contribute to the reliability of the Internet?




✔✔ Data redundancy involves storing copies of data in multiple locations. This ensures that if

one copy is lost or corrupted, other copies are still available, increasing the reliability and fault

tolerance of Internet communications.




What is protocol layering and why is it used in network communication?




✔✔ Protocol layering is the practice of dividing network communication into distinct layers,

each with its own set of protocols. This modular approach simplifies the design and

troubleshooting of networks by isolating functions at each layer.




How do firewalls contribute to network security?




✔✔ Firewalls filter and control incoming and outgoing network traffic based on predefined

security rules, helping to protect networks from unauthorized access and cyber threats.




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, What is the purpose of network addressing and how is it achieved?




✔✔ Network addressing assigns unique identifiers (like IP addresses) to devices on a network,

allowing them to send and receive data accurately. It is achieved using protocols like IPv4 and

IPv6.




Explain the concept of network congestion and its impact on data transmission.




✔✔ Network congestion occurs when too many data packets are sent through a network

simultaneously, leading to delays, packet loss, and reduced overall performance.




What role does end-to-end principle play in network design?




✔✔ The end-to-end principle suggests that network functionalities should be implemented at the

endpoints (devices) rather than in the network itself. This approach ensures that core network

components remain simple and efficient.




How does error detection enhance data integrity during transmission?




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