Subnetting — Cisco CCNA (200-301) Practice Questions
Subnetting is the process of dividing a larger IP network into smaller, logical subnetworks by borrowing bits from the host portion of an address, using a subnet mask to define network and host boundaries. The CCNA 200-301 exam places heavy emphasis on subnetting, requiring candidates to calculate network addresses, broadcast addresses, valid host ranges, and the number of usable hosts for both IPv4 and IPv6. Subnetting skills are tested directly in calculation questions and indirectly in routing and troubleshooting scenarios. Mastery of subnetting is one of the most consistently important skills for passing the CCNA.
Free questions on subnetting
How many usable host addresses are available in a /28 subnet?
Free question · medium · full answer + explanation
What is the subnet mask for a /24 network in decimal notation?
Free question · easy · full answer + explanation
More subnetting questions in the full bank
- What is the subnet mask in binary for a /28 CIDR network? Unlock answer & explanation →
- Which of the following is a valid private IP address? Unlock answer & explanation →
- What is a DHCP relay agent? Unlock answer & explanation →