Port numbers are used to keep track of different conversations crossing the network at the
same time. Both TCP and UDP use port (socket) numbers to pass information to the upper
layers. Port numbers have the assigned ranges.
Port numbers above 1024 are considered which one of the following?
A.
Dynamically assigned port numbers
B.
Statically assigned port numbers
C.
Well-known port numbers
D.
Unregistered port numbers
Explanation:
Reference:
http://stackoverflow.com/questions/136709/what-port-number-should-i-usewhen-testingconnections-in-my-local-intranet-in(see post 4)
“A” ECSAv8 page 62
“C” ECSAv8 page 62 Numbers below 1024 are considered well-known port numbers
the question says:above.A is the correct answer
oops, read that wrong…
A – Dynamically assigned port numbers (Ans is A)
Statically assigned port numbers are registered to specific applications, though they are above 1024.
Ans “A” is 100%
“The range 49152–65535 (215+214 to 216−1) contains dynamic or private ports that cannot be registered with IANA.[177] This range is used for private, or customized services or temporary purposes and for automatic allocation of ephemeral ports.”
The correct answer is “A” – Well known ports.