mcq_m5 - System Analysis and Design / Tools for Systems...

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System Analysis and Design / Tools for Systems Analysts Multiple Choice Questions 5.1.1 In a DFD external entities are represented by a (a) rectangle (b) ellipse (c) diamond shaped box (d) circle 5.1.2 A data flow can (a) only emanate from an external entity (b) only terminate in an external entity (c) may emanate and terminate in an external entity (d) may either emanate or terminate in an external entity but not both 5.1.3 A rectangle in a DFD represents (a) a process (b) a data store (c) an external entity (d) an input unit 5.1.4 External Entities may be a (a) source of input data only (b) source of input data or destination of results (c) destination of results only (d) repository of data 5.1.5 By an external entity we mean a (a) unit outside the system being designed which can be controlled by an analyst (b) unit outside the system whose behavior is independent of the system being designed (c) a unit external to the system being designed (d) a unit which is not part of a DFD 5.1.6 A data store in a DFD represents (a) a sequential file (b) a disk store (c) a repository of data (d) a random access memory 5.1.7 A data flow can (a) only enter a data store (b) only leave a data store (c) enter or leave a data store (d) either enter or leave a data store but not both 5.1.8 A data cannot flow between a store and (i) a store (ii) a process (iii) an external entity (a) i and iii (b) i and ii (c) ii and iii (d) ii 5.1.9 Data cannot flow between two data stores because V. Rajaraman/IISc. Bangalore M5/V1/July 04/1
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System Analysis and Design / Tools for Systems Analysts Multiple Choice Questions (a) it is not allowed in a DFD (b) a data store is a passive repository of data (c) data can get corrupted (d) they will get merged 5.1.10
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This note was uploaded on 08/29/2010 for the course CBEAM SAD taught by Professor Smiths during the Spring '10 term at De La Salle Lipa.

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mcq_m5 - System Analysis and Design / Tools for Systems...

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