Careful, it's a trick question. In most programming languages the upper bound of an unsigned integer is 65535 because counting starts at 0.
2
Anonymous
3 Nov 2015
Anyone ever read Snow Crash?
Anonymous
15 Sept 2015
65536(power of 2s) All Networking folks should get that
Anonymous
6 Mar 2016
Just remember 2^10 is about 1000. 2^10*2^6 = 2^16 = 1000*64 = around 64000. Your interviewer will probably be satisfied with that. Also, you should always have a power of twos table in front of you during a technical phone interview.