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How many bits are typically covered in an internet protocol version 6 (IPv6) subnet mask?



A. 24
B. 48
C. 64
D. 128

This question is part of 3D052 VOL 1
Asked by Dinstaarax, Last updated: Jun 12, 2020

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3 Answers

John Adney

John Adney

Answered Oct 06, 2017

Page 14:

Address fields
Similar to IPv4, IPv6 uses both network and host addresses. What is different is that with IPv6,
usually the network address is 64 bits long, and the host field is 64 bits long, thus increasing the
potential number of unique address, as each of the host ID’s can be duplicated on each network.

Subnet mask
The subnet mask in IPv6 serves the same purpose and has the same meaning as it does in IPv4. In
IPv6, the subnet mask is normally /64.

 

Martine Cholu

Martine Cholu

Answered Oct 06, 2017

Address fields
Similar to IPv4, IPv6 uses both network and host addresses. What is different is that with IPv6,
usually the network address is 64 bits long, and the host field is 64 bits long, thus increasing the
potential number of unique address, as each of the host ID’s can be duplicated on each network.

Subnet mask
The subnet mask in IPv6 serves the same purpose and has the same meaning as it does in IPv4. In
IPv6, the subnet mask is normally /64.

 

Dinstaarax

Dinstaarax

Answered Sep 13, 2017

128
 

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