tailieunhanh - Trắc nghiệm 300 câu phân tích và thiết kế hệ thống

Partitioning DFDs: a. The process of analyzing a DFD and deriving a series of manual procedures b. Adding controls to ensure the processes are done property c. The process of analyzing a DFD and deriving a series manual procedures and computer programs d. None of these answers Câu 162: Physical data flow diagram: a. describing processes in greater detail b. show sequencing processes in the order they must be executed c. show how the system operates or how the new system will be implemented d. all of these answers Câu 163: Physical DFDs a. show how the system is or. | Trang 2 Câu 161 Partitioning DFDs a. The process of analyzing a DFD and deriving a series of manual procedures b. Adding controls to ensure the processes are done property c. The process of analyzing a DFD and deriving a series manual procedures and computer programs d. None of these answers Câu 162 Physical data flow diagram a. describing processes in greater detail b. show sequencing processes in the order they must be executed c. show how the system operates or how the new system will be implemented d. all of these answers Câu 163 Physical DFDs a. show how the system is or will be constructed. b. not concerned about how the system is or will be constructed. c. concerned about how the system is or will be constructed. d. none of these answers. Câu 164 Process names should be in the form a. verb b. adjective c. noun d. All of these answers Câu 165 Select option s not true a. All of these answers. b. The database community has developed a series of guidelines for ensuring that databases are normalized c. A database to be in 2NF it must first fulfill all the criteria of a 1NF database d. Realization is the process of breaking up the data into several tables so as to minimize the number of times we have to repeat the same data Câu 166 Select the false statement a. Requirements engineering is a generic process that does not vary from one software project to another. b. It is relatively common for different customers to propose conflicting requirements each arguing that his her version is the right one. c. A stakeholder is anyone who will purchase the completed software system under development. d. None of these answers. Câu 167 Select the error s in DFDs a. Connecting data stores and external entities directly to each other. b. Incorrectly labeling processes and or data flow. c. Forgetting to include a data flow or pointing an arrowhead in the wrong direction d. All of these answers Câu 168 Select the false statement about DFDs a. Data that travel together should be .