Getting Your First US SIM Card
A guide to getting your first US mobile connection upon arrival, including popular carrier options and the difference between pre-paid and post-paid plans.
Collection of notes by Karthik Kadambi.
A guide to getting your first US mobile connection upon arrival, including popular carrier options and the difference between pre-paid and post-paid plans.
How Zolve helps immigrants start their credit history in the US even before they land.
Border Gateway Protocol (BGP) determines routing between large networks and keeps the global internet connected.
IPv6 replaces IPv4 with a vastly larger address space and improved routing efficiency.
WebSockets provide persistent, two-way connections for real-time web communication.
Caching stores frequently used data temporarily to speed up load times and reduce bandwidth.
A proxy intermediates client-server communication for caching, security, traffic control, or anonymity.
Load balancing spreads traffic across servers to improve reliability, prevent overload, and enable scaling.
A VPN creates an encrypted tunnel to protect traffic and provide secure remote access and privacy.
A Content Delivery Network (CDN) caches and serves content from locations near users to reduce latency.