What are the common physical layer standards? What is crosstalk and how can it be minimized?
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- What are the different physical media used for data transmission?
- What is the purpose of the application layer?
- What is data encryption and decryption at the presentation layer? What is data compression and decompression at the presentation layer?
- How does the OSI model help in understanding network failures? What are the key takeaways from learning the OSI model?
- How can knowledge of the OSI model improve network administration skills?
- How does the physical layer interact with the data link layer? What are the data units at the data link layer?
- What is bandwidth and how does it relate to the physical layer?
- How does the OSI model relate to network programming and socket programming? Can you give a simplified analogy for the OSI model?
- What is the three-way handshake in TCP?
- What is quality of service (QoS) at the network layer?
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