permissions

Reading rwx bits is the easy half. Interviewers check whether you know what execute means on a directory, why setuid binaries are an attack surface, and what the sticky bit does and does not protect.

An extension with 'read and change all your data on all websites' sits inside every session your staff open, and it updates itself. The scored answer treats extensions like software you deploy, because they are.

The sandbox is a Linux user ID, SELinux and a signature that decides who you are. Get those three right and most Android security questions become reasoning rather than recall.

The connector copies documents out of a system that enforces permissions into one that must re-create them. The scored answer treats permission fidelity and freshness as the core problem.