networking experts or systems administrators ,database administrators,programmers.
Explanation:
The people who enter in the field of information security are professionals in technical fields bu their work is totally into the field of security like working on security applications.They don't work on the traditional IT assignments such as developing software,apps,website etc.
This delay in routers is what we called Packetization delay
or also called Accumulation delay. Packetization delay is the time required for
the information to pass on the wires. The data rate of the links that passes
thru the wires cause the delay.