IPv4 Subnet Masks and Calculations

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9 Terms

1
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What is Classless Inter-Domain Routing?

Refers to the number of network bits in binary for a subnet mask.

2
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What is a CIDR block?

/# of network bits.

3
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What is a subnet mask made of?

Contiguous series of ones.

4
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What is Variable Length Subnet Masks (VLSM)?

Create a subnet mask that you can define to match what your needs are.

5
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How do you find the number of subnets?

2^subnet bits.

6
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How do you find hosts per subnets?

2^host bits - 2.

7
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How do you find network bits?

Subnet class.

8
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What is every 1 after the network bits represent?

Subnet bits.

9
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What do the 0s represent?

Host bits.