Final answer:
A host on a private network, such as Wrk1, should be assigned a Private IP address, which can be either static (manually set) or dynamic (assigned by DHCP). This type of address keeps the device secure and inaccessible from the public internet.
Step-by-step explanation:
The type of address you would assign to the host Wrk1 on a private network is a 4) Private IP address. Private IP addresses are used within a network and are not routable on the internet, which means they are not accessible from outside the private network. This helps secure the network by keeping internal addresses hidden from the public internet.
There are two possible ways to assign a private IP address: 1) Static IP address, which is set manually and does not change unless manually reconfigured, and 2) Dynamic IP address, which is assigned by a DHCP server and can change over time. For most internal network devices, dynamic IP addresses are sufficient. However, for servers or devices that need to maintain the same IP address for connectivity purposes, like network printers, a static IP may be preferable.