Exhibit 15.1
The following questions employ the AON network and partial spreadsheet below.
-Activity-on-Arc (AOA) networks do not allow multiple arcs with common start and finish nodes. If this must be represented, how is an AOA network modified?
A) The network is redrawn into an Activity-on-Node network.
B) Connect the arcs to the node using an IFERROR() function.
C) Phantom (dummy) activity arcs are added.
D) Zero duration activity arcs are added.

Question

Exhibit 15.1
The following questions employ the AON network and partial spreadsheet below.  
-Activity-on-Arc (AOA) networks do not allow multiple arcs with common start and finish nodes. If this must be represented, how is an AOA network modified?
A) The network is redrawn into an Activity-on-Node network. 
B) Connect the arcs to the node using an IFERROR() function. 
C) Phantom (dummy) activity arcs are added. 
D) Zero duration activity arcs are added.

Quizplus · Accepted Answer

AOA networks can be modified by adding phantom (dummy) activity arcs, which represent the connections between nodes where there cannot be multiple arcs. This allows for the network to be represented accurately and effectively. A and D are not correct options as they do not address the issue of representing multiple arcs. B does not make sense in this context as IFERROR() is a function used in Excel to handle errors.

Exhibit 15.1 The Following Questions Employ the AON Network and Partial Spreadsheet