Which of the following wildcard masks is most useful for matching all IP packets in subnet 10.1.128.0, mask 255.255.255.0?
Which of the following wildcard masks is most useful for matching all IP packets in subnet 10.1.128.0, mask 255.255.255.0?
- 0.0.0.0
- 0.0.0.31
- 0.0.0.240
- 0.0.0.255
- 0.0.15.0
- 0.0.248.255
Explanation: 0.0.0.255 matches all packets that have the same first three octets. This is useful when you want to match a subnet in which the subnet part comprises the first three octets, as in this case.
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