Which subnet is listed as restricted for guest access?

Which subnet is listed as restricted for guest access?

• A. 192.168.0.0/16
• B. 192.168.1.0/24
• C. 10.0.0.0/8
• D. 172.16.0.0/12

Answer: (A)

In private IPv4 addressing, certain blocks are reserved for local networks and are not routable on the public Internet. The 192.168.0.0/16 range is a broad private block commonly used for home and small-office LANs. When a network policy lists “restricted for guest access,” this larger 192.168.0.0/16 range is often the one singled out to prevent guests from reaching devices on the main LAN, ensuring proper isolation. It encompasses a wide swath of addresses (from 192.168.0.0 to 192.168.255.255), which makes it a convenient, comprehensive block to apply guest-restriction rules to. The other options are also private ranges, but they don’t fit as the single block typically designated for guest-restriction in that context. A subnet such as 192.168.1.0/24 is simply a smaller segment inside the /16 block, not the broader policy target. The 10.0.0.0/8 and 172.16.0.0/12 ranges are used for larger internal networks in many organizations, so they aren’t the standard choice for a guest-access restriction in the common lab or quiz scenarios.

In private IPv4 addressing, certain blocks are reserved for local networks and are not routable on the public Internet. The 192.168.0.0/16 range is a broad private block commonly used for home and small-office LANs. When a network policy lists “restricted for guest access,” this larger 192.168.0.0/16 range is often the one singled out to prevent guests from reaching devices on the main LAN, ensuring proper isolation. It encompasses a wide swath of addresses (from 192.168.0.0 to 192.168.255.255), which makes it a convenient, comprehensive block to apply guest-restriction rules to.

The other options are also private ranges, but they don’t fit as the single block typically designated for guest-restriction in that context. A subnet such as 192.168.1.0/24 is simply a smaller segment inside the /16 block, not the broader policy target. The 10.0.0.0/8 and 172.16.0.0/12 ranges are used for larger internal networks in many organizations, so they aren’t the standard choice for a guest-access restriction in the common lab or quiz scenarios.