When determining outsourcing fees, a _____ has a variable fee based on the number of users or workstations that have access to the application.
A. fixed fee model
B. usage model
C. subscription model
D. transaction model
Answer: C
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Validation rules ensure validity of the data in the database, while entity integrity ensures the validity of the relationships.
Answer the following statement true (T) or false (F)
Answer the following statement(s) true (T) or false (F)
1. Communication with an Ethernet device using Ethernet communications is not possible until the device is configured and/or the IP address for the device is known. 2. The 1769-L23s are available with embedded ControlNet communications. 3. All 1769 CompactLogix controllers are supplied with one serial and one Ethernet port. 4. DeviceNet communications require the separate purchase of the communications modules for insertion into a CompactLogix slot. 5. The CompactLogix Ethernet/IP address changes frequently after installing a network and configuring other devices on the network.