/25 subnet mask explained in dotted decimal and binary, with step-by-step network, broadcast, and usable-host calculations, plus how it fits with Class B IP addresses and CIDR today.
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Need the RJ45 cable order for a T568B Ethernet cable? See the RJ45 T568B color code, all eight pin positions, pair roles, termination steps, and cable-tester results, including split pairs.
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Learn what a WAN port does, how WAN and LAN ports route traffic and addresses, and how mesh, bus, star, and point-to-point topologies differ in failure, cabling, and scale.
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Learn dBm to watts and watts to dBm conversions, then see how 5G frequency, antennas, losses, and regulation shape range across access points and fixed wireless broadband.
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Plan an SFP network link from equipment port to carrier handoff, with practical guidance for matching fiber, copper cabling, patching, and extension points.
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