after I applied, I received an invitation to take a 3 hour writing test. Next, I spoke with a recruiter and then I was interviewed by 4 top people in different areas at CNBC.

HireVue. Four spoken, three written. I don't believe there was a word count limit. Spoken you had 1-2 minutes. Two attempts at recording with no time limit in between. Common questions about the industry, the company, and business journalism. Fairly standard practice.