系统级编程选择题.docVIP

PAGE \* MERGEFORMAT 17 Multiple Choice Quiz 1 1. Which of t he following Visual C++ objects are contained within a Project? (a) I. Files II. Visual C++ Solutions III. Flow charts a. I only b. I, II and III c. II only d. II and III only Which is the start point of a Windows program (d) a. the status window of the Visual C++ environment b. built by using sophisticated Application Wizards c. a program that is able to control the operating system of a windows computer d. the simplest type of application Visual C++ can generate 3. Which of the following is able to describe a computation at the highest level of abstraction? (a) a. C++ code b. logic Gates c. machine code d. C code 4. Consider the following fragment of C++ source code. (c) String msg; unsigned int x; int y; cin msg x y; cout x + y; Which of the following is (are) true regarding execution of the segment? 1. The input statement will always take the same amount of time to execute. 2. The output statement will always be executed immediately after the input statement. 3. If x and y are both positive, an integer greater than both will be printed. a. II and III only b. I and II only c. none d. II only 5. Integrated programming environments make it difficult to mix and match tools from different sources. This is (b) a. good, because tools from different sources cannot be made to interact with each other b. bad, because no single vendor is likely to be the source of all the best tools c. bad, because all the tools will then have the same user interface d. good, because it ensures compilation is not done incrementally by accident 6. Compared to a sequence of machine code instructions, a fragment of C code (a) a. may describe the same algorithm b. is the native way to program most computers c. describes the actions of the computer, not just of the CPU d. does not engage any transistors during its execution 7. Which of the following does a debugger do?