Briefly explain the difference between system testing and user acceptance testing (UAT).
What will be an ideal response?
System testing involves testing the complete, integrated system (hardware, software, databases, people, and procedures) to validate that an information system meets all specified requirements. System testing is often done by independent testers who were not involved in developing program code. They attempt to make the system fail. They frequently employ testing called black box testing because it requires no specific knowledge of an application's code and internal logic. In other words, a system tester is aware of what the software is supposed to do but is not aware of how it does it. During user acceptance testing (UAT), trained users test the information system to verify that it can complete required tasks in a real-world operating environment and perform according to the system design specifications. UAT is also known as beta testing, application testing, and end-user testing. Unlike system testing, which ensures that the system itself works, UAT determines whether the system meets its intended business needs.??
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Discuss how the log file (or journal) is a fundamental feature in any recovery mechanism. Explain what is meant by forward and backward recovery and describe how the log file is used in forward and backward recovery. What is the significance of the write-ahead log protocol? How do checkpoints affect the recovery protocol?
What will be an ideal response?
Identify the letter of the choice that best matches the phrase or definition.
1. The kind of path you draw with the Rectangle Tool
2. The kind of path with separate start and end points
3. The points that define a path
4. Lets you define a mask for a layer based on the shape of another layer
5. A unit of measurement that is 1/72 of an inch
6. The spacing between all of the characters in selected text or a paragraph
7. The spacing between a pair of characters
8. The kind of text in a paragraph in which each line of text is balanced on an imaginary vertical line through the center of the bounding box
9. Change the appearance of text and are listed on the Layers panel grouped with the layer to which they apply
10. The line on which text will rest as you type
11. Text that is contained in a bounding box whose dimensions you specify by activating a Type Tool and then clicking on the canvas and dragging
12. Text that you type after selecting one of the Type Tools and clicking directly on the canvas to type