CodeStar[YEAR]-DevOps-Phase02-Team[shahkei]

[hsnkei]

Computer Networks

Feel free to answer in Persian

• What is a protocol?
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• Why computer networks architecture is layered?
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• How your national code and a computer's MAC adress are similiar?
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• How ARP works? Why do we need it?
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• How computers that are not in a subnet comminucate with each other? explain.
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• What is the importance of TCP and why a two-way handshake won't work for it?
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• What is the TTL field in a DNS record?
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• How to open a TCP port and connect to it using Netcat?
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