IPv4 Classes Flashcards by Leroy Reynolds | Brainscape

Q

Default Subnet Mask 255.0.0.0

126 Networks

A

Class A

1st Octet 1 - 126

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Q

Default Subnet Mask 255.255.0.0

16,384 Networks

A

Class B

1st Octet 128-191

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Q

Default Subnet Mask 255.255.255.0

2,097,152 Networks

A

Class C

1st Octet 192 - 223

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Q

Default Subnet Mask 255.255.255.255

Reserved for Multicast

A

Class D

1st Octet 224 -239

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Q

Default Subnet Mask ?.?.?.?

Experimental

A

Class E

1st Octet 240 - 254

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