Explain the difference between a TP monitor and a transaction manager.
What will be an ideal response?
A TP monitor is collection of middleware components (usually including a transaction manager) that are useful for building TP-heavy systems. It provides a set of application-independent services that are needed in a transaction processing system, but are not usually provided by an operating system.
A transaction manager is a middleware component that coordinates the execution of transactions, including the two-phase commit
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Which of the following assignments would be a compilation error?
a. Assigning the address of a base-class object to a base-class pointer. b. Assigning the address of a base-class object to a derived-class pointer. c. Assigning the address of a derived-class object to a base-class pointer. d. Assigning the address of a derived-class object to a derived-class pointer.
Match the following operators to their functions:
I. Or II. Like III. <= IV. >= V. <> VI. In A. Matches pattern strings in Text and Memo fields B. Specifies that one of many entries can be accepted C. Greater than or equal to D. Tests for values equal to existing members in a list E. Less than or equal to F. Not equal to
When using data encryption as a method of protecting data, which of the following is true?
A. It makes few demands on system resources B. It should sometimes be used for password files C. It is usually easily administered D. It requires careful key Management
The series of steps that describe exactly what each portion of a program is supposed to do is known as a(n):
A. partition B. IDE C. compiler D. algorithm