This is a trick question, because the only correct answer is "it depends".
The definitions are arbitrary and vary - sometimes wildly or completely opposite - from company to company and industry to industry. Some companies don't use titles at all and use levels - which are also arbitrary and differ accordingly.
If you never leave the incestuous Silicon Valley bubble, however, you may never learn this.
Comments
This is a trick question, because the only correct answer is "it depends".
The definitions are arbitrary and vary - sometimes wildly or completely opposite - from company to company and industry to industry. Some companies don't use titles at all and use levels - which are also arbitrary and differ accordingly.
If you never leave the incestuous Silicon Valley bubble, however, you may never learn this.