Layer 4 vs Layer 7
Connection-level versus request-level balancing, and what each unlocks.
Nothing written here yet
This topic is part of the curriculum but has no questions, cards or glossary entries so far. The rest of Networking may still cover what you are looking for.
Neighbouring topics
Networking
General material on the network path underneath an architecture.
TCP/IP
Handshakes, congestion control, head-of-line blocking and connection reuse.
No content yetHTTP/1.1, HTTP/2 & HTTP/3
Multiplexing, prioritisation and the transport each is built on.
No content yetDNS
Resolution, TTL behaviour, traffic steering and failover latency.
No content yetTLS & Certificates
Encryption, integrity, authentication, termination points and expiry.
No content yetReverse Proxies
One place for TLS, routing, caching, compression and rate limiting.
No content yetContent Delivery Networks
Edge caching, origin offload, spike absorption and dynamic content.
No content yetFirewalls & Security Groups
Default-deny, stateful rules, and restricting egress as well as ingress.
No content yetNAT & Egress
Outbound-only connectivity, its per-gigabyte cost and its zone binding.
No content yetVPC Design
Address planning, peering and the ranges you can never resize.
No content yetSubnetting
Tiering, zone binding, and sizing for an address-hungry platform.
No content yetRouting & BGP
How traffic finds you, anycast, and route withdrawal as a failure mode.
No content yetService Mesh Networking
Sidecar proxies supplying mTLS, retries and traffic policy.
No content yetWebSockets & Realtime
Persistent bidirectional connections and the capacity model they impose.
No content yetgRPC Transport
HTTP/2 multiplexing, binary encoding and streaming semantics.
No content yetAPI Gateways
The single entry point, and the business logic that must stay out of it.
No content yetNetwork Performance
Latency floors, bandwidth-delay product, and what no code change fixes.
No content yetPrivate Connectivity
Private endpoints, peering and dedicated links to managed services.
No content yetNetwork Troubleshooting
Flow logs, packet paths, and localising a problem to a hop.
No content yet