Which statement correctly describes subnetting and CIDR notation?

Which statement correctly describes subnetting and CIDR notation?

• A. Subnetting divides networks into smaller segments; CIDR notation provides a compact IP range specification (for example, /24).
• B. CIDR notation uses a slash followed by a prefix length to specify the subnet, such as /24.
• C. Subnetting is unrelated to IP ranges, and CIDR shortens DNS names.
• D. Subnetting increases router speed by using IPv6 only.

Answer: (B)