The Cisco Systems' ____ protocol is an alternative to IEEE 802.1q.
A) TPID
B) CRC
C) ISL
D) TCI

Name: The Cisco Systems' ____ protocol is an alternative to IEEE 802.1q. A) TPID B) CRC C) ISL D) TCI
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Cisco Systems' proprietary protocol for VLAN tagging is ISL (Inter-Switch Link). It is an alternative to the industry standard IEEE 802.1q protocol. The other options listed are not alternative protocols for VLAN tagging.

The Cisco Systems' ____ Protocol Is an Alternative to IEEE