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JN0-101 · Question #189
JN0-101 Question #189: Real Exam Question with Answer & Explanation
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Question
What is the purpose of a network mask?
Options
- AIt is used in conjunction with the wildcard mask to determine the number of hosts on a network.
- BIt is used to define which parts of the IP address are allocated to host addresses and network prefixes.
- CIt is used to hide subnets from external networks by masking the subnets with NAT.
- DIt is used to differentiate a network as a classful network or a classless network.
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