LogFAQs > #976334244

Smallville posted...

So what? Interviewers really like asking about that stuff. Ask yourself this, those hard tech questions in that interview, you would have used that stuff all the time if you were hired there?

I'm a network engineer now. Those are some of the most basic tech questions for a network operations center job. Yes, I would have used that stuff all the time if I was hired there.

Question 1, regarding the OSI model:

• The OSI model is a framework that defines the basic framework of how networking functions. The TCP/IP model is what is technically used today, but the OSI model is still commonly referenced. I refer to the OSI model over the TCP/IP model myself because it's more specific.

Question 2, regarding the subnet mask:

• A subnet mask of 255.255.255.252 is the most commonly used subnet mask in networking. You get two usable IP addresses, and it's most often used for links between two layer 3 devices. I thought the answer was 1 because I learned subnetting improperly at my ISP tech support job. The way I learned it was that with that subnet mask, the ISP uses 1 IP, and the customer gets 1 usable IP. So I thought only one of them was considered usable, which is completely wrong.