A Packet containing a long string of NOP’s followed by a command is usually indicative of what?

A.
A syn scan
B.
A half-port scan
C.
A buffer overflow
D.
A packet destined for the network’s broadcast address
Explanation:
Reference “This paper is for those who want a practical approach to writing buffer overflow exploits.
As the title says, this text will teach you how to write these exploits in Perl. ….. There are reasons
why we construct the buffer this way. First we have a lot of NOPs, then the shellcode (which in this
example will execute /bin/sh), and at last the ESP + offset values.”
http://hackersplayground.org/papers/perl-buffer.txt