Explain how the container-based philosophy could be adopted to provide migration transparency for distributed components.
What will be an ideal response?
As a reminder, migration (or mobility) transparency is concerned with hiding the movement of distributed system entities from users or programmers. Containers operate by intercepting incoming invocations and making a series of calls to implement the desired level of transparency before optionally passing on the invocation to the component. To implement migration transparency, a container can use a location service to map objects (or in this case components) on to physical locations. (and keep track of them if they move).
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To combine several effects, use the Effect class's __________ method.
a. setInput b. combineEffect c. addEffect d. Effects cannot be combined.
FIGURE AC 3-1
Which button in the Form Wizard, shown in the accompanying figure, will add a single field to the form?
A. > B. >> C. < D. <<
The y - axis is also known as the ________ axis
Fill in the blank(s) with correct word
COGNITIVE ASSESSMENT In a database, what is the smallest unit of data a user accesses?
A. a field B. a character C. a record D. a file