A technician was called to check an unexpected clicking noise on a desktop that has become more
frequent every time a video editing application is loaded. The system fans have been replaced, but the
clicking noise remains. Diagnostics have been run on the video card.
Which of the following should me the technician do FIRST?

An end user reports being unable to connect to the Internet. A technician tries to ping a well-known site and gets no response. When running ipconfig, the technician notices the IP address of the workstation is
169.254.255.254 with a subnet mask of 255.255.0.0. Which of the following is MOST likely causing the problem?

A technician has received reports of devices performing poorly when they are connected to the 802.11ac network. The technician has verified all the access points are functioning as expected. Which of the following tools should the technician use to troubleshoot the issue?

Which of the following server types caches previously visited web pages for faster access in the future?

A user sets up cable modem at home and connects the modem to the ISP at the cable company. Which of the following network types does this connection describe?