Practice Quiz

CompTIA A+ 220-901

Category - Networking

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A new maintenance worker sends a support ticket that recently his connection to the Internet “comes and goes.” You go to his computer station and find his CAT5e cable was recently run next to the power cable. What do you think is causing the problem?
  1. Due to all of the equipment and power in the maintenance area, the whole environment is emitting EMI.
  2. The NIC is faulty.
  3. The power cable is intermittently generating EMI.
  4. A new cable is needed.
Explanation
Answer: C - Electromagnetic interference (EMI) generated by a power cable is the most probable issue, as the power cable is next to the CAT5e cable.

Key Takeaway: Interference with a network is not limited to wireless systems. Any unit or cable used as a power source can interfere if it is in close enough proximity to computer or connection equipment.
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