When using a /24 subnet mask with a Class B address 172.20.0.0, what is a true outcome?

When using a /24 subnet mask with a Class B address 172.20.0.0, what is a true outcome?

• A. You cannot use a /24 mask with class B addresses.
• B. You can assign addresses to over 200 networks.
• C. Each subnet can support 65,534 hosts.
• D. Choosing a different mask is required for over 300 subnets.

Answer: (B)

Using a /24 subnet mask with a Class B address, such as 172.20.0.0, allows for the creation of multiple subnets. A /24 mask indicates that the first 24 bits of the IP address are designated for the network portion, while the remaining 8 bits are reserved for host addresses within each subnet. Given that a /24 subnet allows for 256 possible addresses (from 0 to 255 in the last octet), this configuration permits a total of 256 subnets because the Class B address has a default prefix length of /16, meaning 16 bits are used for the network part and the remaining 16 bits for hosts. When the subnet mask is configured to /24, the additional 8 bits from the host part are utilized for subnetting. When it comes to the capacity of each subnet, a /24 subnet can support 256 addresses, but since two addresses are reserved (the network address and the broadcast address), this results in being able to assign 254 usable host addresses per subnet. Thus, with 256 subnets, if we consider that each can utilize 254 of these possible addresses, it becomes feasible to manage over 200 networks efficiently. This is why the

Using a /24 subnet mask with a Class B address, such as 172.20.0.0, allows for the creation of multiple subnets. A /24 mask indicates that the first 24 bits of the IP address are designated for the network portion, while the remaining 8 bits are reserved for host addresses within each subnet.

Given that a /24 subnet allows for 256 possible addresses (from 0 to 255 in the last octet), this configuration permits a total of 256 subnets because the Class B address has a default prefix length of /16, meaning 16 bits are used for the network part and the remaining 16 bits for hosts. When the subnet mask is configured to /24, the additional 8 bits from the host part are utilized for subnetting.

When it comes to the capacity of each subnet, a /24 subnet can support 256 addresses, but since two addresses are reserved (the network address and the broadcast address), this results in being able to assign 254 usable host addresses per subnet. Thus, with 256 subnets, if we consider that each can utilize 254 of these possible addresses, it becomes feasible to manage over 200 networks efficiently.

This is why the