_____ 1. In data flow diagrams, circles can be used to represent processes that take data inflows and transform them to information outflows. a) True b) False _____2. One difference between system flowcharts and data flow diagrams is that system flowcharts show conditional logic whereas DFDs don't. a) True b) False

_____3. The highest level of data flow diagrams is the Level One diagram. a) True b) False

_____ 4. This is the symbol for

a) External entitles b) Processes c) Data stores

d) Data flows

_____ 5. In the data flow diagram (DFD), arrows represent which way the data goes (in or out); these are called... a) External entitles b) Processes c) Data stores d) Data flows _____ 6. This is the symbol for

a) External entitles b) Processes

c) Data stores d) Data flows _____7. This is the symbol for

a) External entitles b) Processes c) Data stores d) Data flows _____ 8. This is the symbol for

a) External entitles b) Processes

c) Data stores d) Data flows

_____ 9. An upper level DFD showing external entities and one process element ... (pick 2 answers)

a) is a Context Diagram b) provides a more detailed view of the Context Level Diagram c) is a basic overview of the whole system. d) shows the main functions carried out by the system are highlighted as it is broken into its sub-processes

_____10. What is a Data Flow Diagram (DFD)?

a) A DFD is a graphical representation of how data flows through a business information system b) A DFD is a flow chart that represent how data flows in a system c) A DFD is is a way to structure an organization using different levels of authority and a vertical link, or chain of command, between superior and subordinate levels of the organization d) A DFD is a chart showing how data is handled e) A DFD is a graphical representation of how data flows through a business information system

_____ 11. What is the data store symbol used to represent

a) The storage of data b) The storage of processes c) The storage of customers details d) Manual, transient or electronic storage of data

_____ 12. The process symbol is used to represent

a) Customers queries in process b) Shipping of goods in process c) Manual or computer-driven process that changes data d) Sales negotiation in process

_____ 13. Which symbol is used to represent a process

a) First symbol shown b) Second symbol shown c) Neither symbol is used to represent a process d) Both symbols can be used to represent a process

_____ 14. What is the external entity used for? a) To show all the external works taking place outside the organisation b) To represent source or destination of data that is external to the system c) To represent all employees who work out on the field d) To represent private event held

_____ 15. Does 'sink' means an external entity that takes information from the system? a) Yes b) No