Packet-switching infrastructures are safer environments because ___________.
A.
It is harder to sniff traffic since the computers have virtual private connections.
B.
They are just as unsafe as non-switched environments.
C.
The data link encryption does not permit wiretapping.
D.
Switches are more intelligent than bridges and implement security mechanisms.
Explanation:
Switched environments use switches to allow different network segments
and/or systems to communicate. When this communication takes place, a virtual
connection is set up between the communicating devices. Since it is a dedicated
connection, broadcast and collision data are not available to other systems, as in
an environment that uses only bridges and routers.