In IPv6, what is the equivalent of a subnet mask?

Practice Questions

Q1
In IPv6, what is the equivalent of a subnet mask?
  1. Prefix length
  2. CIDR notation
  3. Subnet identifier
  4. Network address

Questions & Step-by-Step Solutions

In IPv6, what is the equivalent of a subnet mask?
  • Step 1: Understand that IPv4 uses a subnet mask to define the network and host portions of an IP address.
  • Step 2: Know that in IPv6, there is no subnet mask like in IPv4.
  • Step 3: Learn that IPv6 uses a prefix length instead, which is written as a slash followed by a number (e.g., /64).
  • Step 4: Realize that the prefix length tells you how many bits are used for the network part of the address.
  • Step 5: Compare this to a subnet mask, where the number of bits for the network is also indicated, but in a different format.
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