If you're claiming to be a senior salesforce developer who worked for 4 fortune 500 companies, and the person hiring you doesn't know what an "object" is, you can fool them.
I literally had to recommend firing someone like that a few years ago as they were hired by my client as a "Senior Salesforce Admin." The red flag for me by day two was that he just never contributed anything in salesforce-specific meetings in spite of supposedly being the senior-most resource for SF expertise. I confronted him and ask if he could describe an object to me (he couldn't), but had claimed to work for many household brands for years as a salesforce admin.
Apart from the obvious dishonesty, I don't know why he oversold himself SO MUCH. I guess he was stupid enough to completely lie and not take the time to actually learn salesforce, but also equally stupid enough to just overshoot his qualifications.