Potential Phone Call Survey Scam for Alumni?

I graduated in April 2024, and I had been receiving calls every 2 days for a few weeks from a (647) 427-4905 number. I finally answered it today. It was a "college survey" from Ontario Colleges and it asked questions that I'm very familiar with answering, as they are pretty similar to questions I answered for surveys in school. The caller offered a $5 giftcard and then a chance for a draw into a $250 giftcard draw, then asked about my employment, program satisfaction, and preparedness satisfaction.

Red flags: At the end of the survey they asked for the first 3 digits of my postal code and birth month and day. In the middle of the survey they asked for my place of work (I gave them the name of the company) and it's location (I didn't provide the location) and how much I made. They also asked if they could contact my employer, I said no.

The caller already knew my name, which school I attended, and which program I attended which made me consider it possibly legit, but I imagine that's not hard information to come by. I googled the number a few days ago, and some other forums confirmed that they were prompted to complete a survey for their school.

Has any other alumni gotten this call? Is the information I provided possibly enough to run a scam on me?