quick monitor question

[dns72]

I have an aluminum imac from 2007, and I also have an old 17 inch dell LCD monitor. I know I can hook it up to my iMac, but would the iMac monitor and the dell monitor be able to have 2 different resolutions?

 

[Hellhammer]

No need to be same resolution. Only mirroring can cause issues if using monitors with different resolution but if you use them as individual monitors i.e. for expanding desktop, you're fine