K2.2 The principles of the transmission of digital information over copper cable, fibre cable and
wireless networks and systems:
• signal type:
o electrical-based
o light-based
o wireless
• security:
o tampering
o signal loss
• segregation from electrical cables:
o susceptibility to interference:
▪ types of interference (for example electromagnetic impact on signal, static, crosstalk)
▪ mitigation techniques (for example shielding, run cables in parallel)
▪ adhering to industry standards
▪ BS EN 50174
• wireless bands and channels:
o 2.4GHZ:
▪ 802.11b
▪ 802.11g
▪ 802.11n
▪ 802.11ax
o 5GHZ:
▪ 802.11ac
▪ 802.11n
▪ 802.11ax
• internet protocol version 4 (IPv4) network and subnets:
o addressing schemes
o subnetting
o subnet masks
• internet protocol version 6 (IPv6):
o IPv6 address types
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