URL → Rendered Page
One request end to end: DNS, TCP, TLS, HTTP, and the cache — every layer in motion.
DNS→TLS→HTTP
Curriculum
Capstones
End-to-end walkthroughs that stitch several topics into one real system flow
End-to-End Walkthroughs
SQL Query → Disk Read
From a query to bytes on disk: parser, plan, B+ tree index, and the page cache.
Parser→B+Tree
Handwritten Digit → Prediction
Watch a confidence gate route real MNIST predictions—then let held-out truth audit the decision.
Prediction→Decision
Message → Distributed Consensus
Follow one write through replication and commitment, then lose its reply: the client can time out after success.
Network→Raft