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A Wi-Fi mesh network has been optimized to eliminate poor coverage areas, yet users still experience decreased bandwidth and connectivity issues. Which of the following actions should the technician take NEXT?
A. Relocate any large, dense, solid, and metal objects, such as mirrors and file cabinets, in the mesh network coverage area to the perimeter so that wireless reflections, absorptions, and occlusions are minimized.
B. Use a Wi-Fi analyzer to determine whether the channel in use is overcrowded and to identify which channel the mesh network should use for best performance.
C. Use the signal strength indicator on a mobile device to roam the coverage area and generate a heat map to isolate zones with weak signals.
D. Turn off broadcasting of the SSID on the mesh network so that other networks cannot see it.
ANSWER : B
A technician is selling up a projector (or a videoconferencing system. When the user all empts to connect a laptop to the system, the system displays the following error message. No source found The user tries multiple cables and inputs on the projector. Which of the following should the user try NEXT?
A. Check the bulb on the projector and replace it with a new one.
B. Check the display settings on the computer and set them to extend/duplicate.
C. Replace the projector with another known-good one and try again.
D. Replace the video card on the machine that is plugged in to the projector, as it has gone bad.
ANSWER : B
A user failed to gain access to a building's entrance after security measures at the entrance were upgraded last week. The company implemented the 13.56MHz frequency short band, and users can now utilize their mobile devices to authenticate. Which of the following has to be enabled for the mobile device to authenticate?
ANSWER : C
A technician is configuring a new CAD workstation that has four large hard drives. The workstation will be used to edit large, critical files, so the storage configuration should be both fast and redundant. Which of the following RAID levels BEST meets these requirements?
ANSWER : D
While implementing a non-carrier-grade wireless backhaul, a technician notices the current channel selection is externally polluted with various RF signals. Upon performing a spectral analysis, the technician discovers a channel containing almost no RF pollution. Unfortunately, the technician is unable to select that channel. Which of the following is the MOST likely reason for this issue?
A. The channel is reserved for licensed band use.
B. The channel selection is defective, contact the manufacturer.
C. The channel must be unblocked by the vendor.
D. The device requires a firmware update to unlock the channel.
ANSWER : A