Avishai Ish-Shalom

- What is init - What is systemd - `systemctl` - units, services, targets - socket activation - dependencies - `systemd-analyze`

- what are readline and editline - `.inputrc`, `.editrc` - ncurses

- DNS - IP (BGP, VIP) - TCP - HTTP (L7 proxy) - Client side

- SMTP - POP/IMAP - Security

Classic interview question: list everything that happens when you click enter in the browser address box

- Its not about backup, it's about restore - A replica is not a backup - But dataset regeneration is - RTO/RPO - Full/incremental/differential