In IPv4 manual configuration, which property identifies the boundary between network and host portions?

In IPv4 manual configuration, which property identifies the boundary between network and host portions?

• A. DNS Server Address
• B. Subnet Mask
• C. Default Gateway
• D. DHCP Server Address

Answer: (B)

Subnet mask defines the boundary between the network and host portions in IPv4 addressing. It uses 1s to indicate the network bits and 0s for the host bits, so applying it to an IP shows which part identifies the network and which identifies the device within that network. For example, 192.168.1.10 with 255.255.255.0 has the network part 192.168.1 and the host part 10, corresponding to a /24 boundary. This is the value you configure in manual IP setups to establish the network shape and routing. The other options relate to different services: DNS server address is for resolving names, the default gateway is the next-hop to reach other networks, and the DHCP server address is used for dynamic IP assignment.

Subnet mask defines the boundary between the network and host portions in IPv4 addressing. It uses 1s to indicate the network bits and 0s for the host bits, so applying it to an IP shows which part identifies the network and which identifies the device within that network. For example, 192.168.1.10 with 255.255.255.0 has the network part 192.168.1 and the host part 10, corresponding to a /24 boundary. This is the value you configure in manual IP setups to establish the network shape and routing. The other options relate to different services: DNS server address is for resolving names, the default gateway is the next-hop to reach other networks, and the DHCP server address is used for dynamic IP assignment.