A user reports that some normally accessible external sites are not responding, but most other sites are
responding normally. Which of the following is MOSTlikely the cause?
A.
VLAN tag mismatch
B.
Wrong subnet mask
C.
Smurf attack
D.
Faulty routing rule
VLAN tag mismatch- the question doesn’t say if we are on a virtual network
smurf attack is a hacking attack
if it had a wrong subnet mask then access to all sites would not be possible