Exam 220-1201 Topic 1 Question 189 Discussion

Actual exam question for CompTIA's 220-1201 exam
Question #: 189
Topic #: 1
SIMULATION 13
A user at site A is reporting dropped VoIP calls when using a softphone application. However, users at site B are not experiencing any issues. The VoIP provider has a tool to troubleshoot connectivity issues.
INSTRUCTIONS
Click on each tab to investigate the cause of the dropped calls. In Part 1, type help in each terminal to view a list of available commands. Then, select the correct answer for each question.
In Part 2, make necessary network configuration changes to resolve the reported issue.
If at any time you would like to bring back the initial state of the simulation, please click the Reset All button.





Suggested Answer:

Part 1 (VoIP troubleshooting tool)
Most likely cause of the VoIP quality issue
Select: Latency
Reason: Site A shows extremely high latency (310.6 ms) while jitter is moderate and packet loss is 0%.
First action to quickly resolve the issue and minimize disruption
Select: Plug an Ethernet cable into the user workstation.
Reason: This is the fastest, least disruptive way to reduce latency/jitter if the user is on Wi-Fi or has a poor wireless link.
Part 2 (Network configuration change)
On the Site A Switch, configure port Eth4 as the Call center user port:
Description: Call center
State: No shut
VLAN: 300
Mode: Access

by Elton at Mar 11, 2026, 07:12 PM

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