A network administrator will be running Ethernet cables through raised ceilings. Which of the following types of Ethernet cables is the safest solution?
When running Ethernet cables through raised ceilings, which are often used as air ducts for heating and cooling, the safest choice is plenum cable. Plenum-rated cables are designed to be used in spaces where air circulation is needed, and they have fire-resistant insulation that prevents the spread of flames and toxic smoke in the event of a fire.
A. Shielded: While shielded cables offer protection against electromagnetic interference (EMI), they do not address fire safety requirements for use in plenum spaces.
C. Unshielded: Unshielded cables lack both the fire-resistant insulation and protection against EMI, making them unsuitable for use in raised ceilings or other spaces where fire safety and interference are concerns.
D. Riser: Riser cables are designed for vertical spaces between floors and have fire-resistant properties to prevent the spread of flames. They are not suitable for plenum spaces as they do not have the necessary fire-resistant insulation for air circulation areas.
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