100-150 Question 101
Single answerA network technician is tasked with setting up a high-speed backbone connection between two buildings in a campus environment. The distance between the buildings is approximately 300 meters, and the connection must be resilient to electromagnetic interference (EMI). Which cable type and connector combination is the most appropriate for this scenario?
- A
Twisted pair cable with RJ-45 connectors
- B
Copper coaxial cable with BNC connectors
- C
Fiber optic cable with LC connectors
- D
Twisted pair cable with RJ-11 connectors
Show answer and explanation
Correct answer: C
Explanation
The scenario requires a high-speed connection over a distance of 300 meters with resilience to electromagnetic interference. Fiber optic cable is the best choice for long-distance, high-speed communication as it is immune to EMI and can easily support the required distance. LC connectors are commonly used in fiber optic installations, making this the correct option.
- A. Incorrect.
Twisted pair cable with RJ-45 connectors is commonly used for shorter Ethernet connections (up to 100 meters) and is susceptible to EMI, making it unsuitable for this scenario.
- B. Incorrect.
Copper coaxial cable with BNC connectors can handle longer distances than twisted pair but is still vulnerable to EMI and does not support the high speeds typically required for backbone connections.
- C. Correct.
Fiber optic cable with LC connectors is ideal for high-speed connections over long distances (beyond 100 meters) and is immune to EMI, making it the most appropriate choice for this scenario.
- D. Incorrect.
Twisted pair cable with RJ-11 connectors is used primarily for telephone lines and cannot support the high speeds or distances required for this application.