Master how the Internet really works — TCP/IP, DNS, HTTP, TLS, BGP, QUIC, and the protocol stack from wire to web
Sub Category
- Mental Health
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Objectives
- Explain the OSI and TCP/IP layering models and how data is encapsulated and decapsulated across the stack
- Decode Ethernet frames, MAC addressing, switching behavior, VLAN segmentation, and the role of ARP
- Master IPv4 subnetting, CIDR notation, private addressing, NAT, and the structure of IPv6
- Understand routing fundamentals, longest prefix match, distance vector vs link state, and how BGP holds the Internet together
- Walk through TCP connection setup, reliable delivery, flow control, and the slow start and congestion avoidance algorithms
- Compare TCP and UDP and choose the right transport for any application scenario
- Trace a DNS query end-to-end and recognize the major record types like A, AAAA, CNAME, MX, and TXT
- Understand HTTP methods, status codes, cookies, and the conceptual steps of a TLS handshake
Pre Requisites
- Basic computer literacy and familiarity with using the Internet daily
- Comfort with the idea of binary numbers and basic hexadecimal notation
- General understanding of what an IP address and a web browser are
- No prior networking, programming, or system administration experience required
FAQ
- Q. How long do I have access to the course materials?
- A. You can view and review the lecture materials indefinitely, like an on-demand channel.
- Q. Can I take my courses with me wherever I go?
- A. Definitely! If you have an internet connection, courses on Udemy are available on any device at any time. If you don't have an internet connection, some instructors also let their students download course lectures. That's up to the instructor though, so make sure you get on their good side!
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