Once you begin to modify it, the name of the gradient in the Name text box changes to ____.
A. New
B. Custom
C. Unused
D. Ramped
Answer: B
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What will be an ideal response?
Write the flow of events and specify all fields for the use case UpdateTariff that you drew in Exercise 2–4. Do not forget to specify any relationships.
Figure 2-2 depicts a possible solution for this exercise. Use case name UpdateTariff Participating actor Initiated by CentralComputerSystem Flow of events 1. The CentralComputerSystem activates the “UpdateTariff” function of the ticket distributors available on the network. 2. The ticket distributor disables the traveler interface and posts a sign indicating that the ticket distributor is under maintenance. 3. The ticket distributor waits for the new database from the CentralComputerSystem. 4. After waiting a minute for the ticket distributors to reach a waiting state, the CentralComputerSystem broadcasts the new database. 5. The ticket distributor system receives the new database of tariff. Upon complete, the ticket distributor sends an acknowledgement to the CentralComputerSystem. 6. After acknowledgment, the ticket distributor enables the traveler interface and can issue tickets at the new tariff. 7. The CentralComputerSystem checks if all ticket distributors have acknowledged the new database. If not, the CentralComputerSystem invokes the CheckNonRespondingDistributors use case. Entry condition • The ticket distributor is connected to a network reachable by the CentralComputerSystem. Exit condition • The ticket distributor can issue tickets under the new tariff, OR • The ticket distributor is disabled and displays a sign denoting that it is under maintenance. Quality requirements • The ticket distributor stays offline at most 2 minutes and is considered out-of-order otherwise.
The data type "Text" (as it applies to Excel)
A) is of little concern to Excel because Excel does calculations on numbers. B) should be entered into every cell of the spreadsheet. C) includes letters, numbers, and spaces not used in calculations. D) includes formulas, functions, and formatting.
________ are secondary storage devices that use laser technology.
A. Hard disks B. ROM C. Optical disks D. RAM