what does “dead beef” mean?

Question

What does the word \"dead beef\" mean? I read it from a interview question. It has something to do with ipv6. I figured it could be a random hex number used for examples, li

Answer 1

It was used as a pattern to store in memory as a series of hex bytes (0xde, 0xad, 0xbe, 0xef). You could see if memory was corrupted because of hardware failure, buffer overruns, etc.