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Author Question: If a 1:M relationship is mandatory on the 1 side and optional on the M side, which of the following ... (Read 41 times)

bobypop

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on: Jul 7, 2018
If a 1:M relationship is mandatory on the 1 side and optional on the M side, which of the following is true?
 
  A) The resulting foreign key can have null (empty) values
  B) The resulting foreign key cannot have null (empty) values
  C) The resulting foreign key must have null (empty) values
  D) No foreign key is created as a result of mapping such a relationship

Question 2

What are the main hardware components of an ERP system?
 
  What will be an ideal response?


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Kdiggy

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

B

Answer to Question 2

The hardware components include all the computer devices in the ERP system. This includes servers, clients and peripherals. Servers are high end, multi-processor machines with 64 bit processors and lots of RAM and secondary storage. Peripherals are all the other devices that attach to the system for further functionality such as archive servers, printers, networking hardware, and backup power supplies. Clients include the variety of devices that end-users will use to connect to the ERP system such as PDAs and PCs.


bobypop

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Reply 2 on: Jul 7, 2018
Thanks for the timely response, appreciate it

shewald78

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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