CompTIA A+ 220-901 – Q240

A technician is preparing to perform a processor upgrade on a critical company server. Which of the following precautions should be taken FIRST before performing such work on a system? (Select TWO).

A. Discharge all capacitors inside the PSU
B. Remove all jewelry
C. Ensure the PSU is plugged into a grounded electrical socket
D. Ensure humidity levels within the room are lowered
E. Put on an anti-static wrist strap

Correct Answer: B,E