|Subject Areas||% of|
|General Communication Systems||17|
|Communication Wires / Cables Outside and Entering Buildings||20|
|Communication Wires / Cables within Buildings||20|
|Telecommunication System Protection and Grounding and Bonding||17|
|Optical Fiber Cables and Raceways||17|
|Computer Systems and Broadband Communications||10|
We highly recommend that you purchase one of the reference books above to study for your exam. Each book is a comprehensive subject index to the NEC. They provide an even faster way to look up answers in the code and are far more detailed than the index at the end of the code book.
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