You’re generally seen to be good at something if it take little effort to come to the answer or ‘do’ the work. I can pretty much do this for ‘digital’ in lot of its areas. I need my team and wider service to know much too. Yet there are no shortcuts. Should you use a tiff image file type on the web or a jpeg? what makes the internet work? why is the open web better for us than a closed system? will a PDF open in 250 years?
To learn the answers to these and much more you just have to start on the long path. Read more about the web and digital, attend evening sessions (often in a pub if that helps), be curious at all times. Here is a tip though: until you ‘do’ the leg work the answer is nearly always “yes that could work but it depends”.