At my company they do a technical test for an hour followed by a technical interview. It's like an exam. The test is decisive. I prefer this kind of tests, as

At my company they do a technical test for an hour followed by a technical interview. It's like an exam. The test is decisive. I prefer this kind of tests, as they only require an hour of effort, and they are objective. All the time a technical test was involved I received a quick and good offer. When I had to convince them about my skills just by talking I either got no offer or I got an offer that was way to low for my experience (like half or worse). As an example, the hardest problem in the test was a C function that receives two parameters, one by value, another by reference, and it did some modifications to those parameters. The problem was further complicated by having two global variables with the exact same names as the parameters that were used to call the function but with the variables switched (global a went to parameter b, global b went in parameter a). At the end they asked what's the value of global a, b?