RSA Security interview questions

I got asked the following questions on the technical part: The interview was in Arabic, no introductions straight to the technical questions about 3 topics Networking, Security and Linux Networking questions: -OSI layers, their functions and their PDUs -Router and switch difference -Stateful and stateless firewalls -Vlans and intervlan routing -NAT -Switch operations Security: CIA AAA MFA Risk and vulnerability difference Difference between pin testing and vulnerability scan Assymetric keys IPsec key negotiation Difference between encryption and Hashing Http response codes Linux: Basic commands >> ls, top, netstat, df, du, mkdir, touch, vim, systemctl, links, yum, rpm, passwd, how to reset root password without passwd Questions about file system >> etc directory, Questions about storage in Linux and I was asked about raid types as well masked services fstab Linux disk systems gpt and nbr partition tables