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Author Question: When using the sequential file organization, the addition of rows requires rewriting the file. ... (Read 173 times)

saliriagwu

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on: Jul 7, 2018
When using the sequential file organization, the addition of rows requires rewriting the file.
 
  Indicate whether the statement is true or false

Question 2

Referencing use-case modeling, a source is an external entity that interacts with the system.
 
  Indicate whether the statement is true or false


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alexanderhamilton

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Reply #1 on: Jul 7, 2018
Answer to Question 1

TRUE
Explanation: In a sequential file organization, the rows in the file are stored in sequence according to a primary key value. Adding a row requires rewriting the file.
CL

Answer to Question 2

FALSE
Explanation: An actor is an external entity that interacts with the system (similar to an external entity in data-flow diagramming).
CL


saliriagwu

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Reply 2 on: Jul 7, 2018
YES! Correct, THANKS for helping me on my review

samiel-sayed

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Reply 3 on: Yesterday
:D TYSM

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