Question 900
A router has a directly connected 10.2.0.0/24 and receives a packet for 10.2.0.255, the subnet-directed broadcast. Which statement distinguishes that address from an ordinary unicast host?
Explanation
Correct Answer
All host bits are 1 in 10.2.0.255/24. Routers generally do not forward directed broadcasts by default due to abuse risk.
Incorrect Answers
10.2.0.0 is the network identifier; .255 has all host bits set.
The final address of a conventional /24 is reserved as the directed broadcast.
An address ending in .255 is not inherently an OSPF router ID and its role here is broadcast.