A user is unable to access any LAN resources, such as network shares or printers, but Is able to surf the Internet Which of the Mowing troubleshooting steps should a technician perform FIRST?

An organization keeps receiving spam that appears to come from its own domain. No accounts have been compromised.
Which of the following will BEST mitigate this issue?

A workstation's RAM is being upgraded to 24GB. The system has six RAM slots supporting DDR4 dual-channel, with a maximum of 32GB total system memory. Which of the following configurations will maximize system performance?

Which of the following can be used to connect to external devices, can provide charging capability can pass video signals to a monitor, and Is capable of 40Gbps data transfers over a single cable?

Joe, a user, reports that his new smart wearable device is not synchronizing to his mobile device. Both devices are powered on, but the mobile device fails to read the data from the wearable. Which of the following will MOST likely fix this issue?