ISO: disk images of operating systems. Basically allows you to run multiple computers on one laptop/desktop
AD: Microsoft’s Active Directory. Basically a big database of objects in a network e.g users, computers, printers, groups
DNS: Domain Name System. Provides translation between a domain name e.g “thecoil.com” and it’s IP address e.g 81.47.211.12 (which is really how computers communicate, not via domain names)
DHCP: Dynamic Host Configuration Protocol: Example: within a private network, it provides auto assigned IP address to devices and manages the state of said IP address.
But to be honest search it on YouTube.
And for the people who lie on their CV they may have gotten away with it, but if you’re interviewing at good organisations, you’ll be caught out very quickly, most times during the interview. I personally love calling people out on shyt in their CV
As for me I work in IT security since 2009, mostly in finance for the two biggest banks in the UK and USA. I now for a main US technology company