A JavaFX app’s main class directly inherits from ________.
a. Main
b. Application
c. App
d. Object
b. Application
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Which of the following statements is false?
a. JavaFX applications in which the GUI is implemented as FXML adhere to the Model-View-Controller (MVC) design pattern, which separates an app’s data (contained in the model) from the app’s GUI (the view) and the app’s processing logic (the controller). b. The model presents the data stored in the view. c. When a user provides input, the controller modifies the model with the given input. d. When the model changes, the controller updates the view to present the changed data.
Describe the recovery procedure if a cohort or coordinator crashes at the following states within the two-phase commit protocol:
a. Before the coordinator sends the prepare message b. After a cohort has voted but before the coordinator has decided commit or abort c. After the coordinator has decided to commit but before the cohort has received the commit message d. After the cohort has committed, but before the coordinator has entered the completion record in the log
An integrated database for the entire organization makes it easier to share data among different business units.
Answer the following statement true (T) or false (F)
Prior to analysis, data should be copied from a hard disk utilizing which of the following?
A. Write protect tool B. Block data copy software C. Bit-by-bit copy software D. Memory dump tool