Use the ping command to test connectivity between all network devices. From PC-A to Wireless Router default gateway, the ping results should be successful. From PC-A to R1, the ping results should be successful. From PC-B to Wireless Router default gateway, the ping results should be successful. What is the purpose of using the ping command in this scenario?
1) To check if the network devices are connected to the internet
2) To measure the round-trip time between devices
3) To troubleshoot network connectivity issues
4) To configure network settings