Final answer:
The IEEE standard for 100 Mbps Ethernet is IEEE 802.3u, also known as Fast Ethernet or 100BASE-TX. It is an enhanced version of the original Ethernet standard providing higher network speed.
Step-by-step explanation:
The IEEE standard you're referring to for 100 Mbps Ethernet is known as IEEE 802.3u, also commonly referred to as Fast Ethernet or 100BASE-TX. This standard was introduced in 1995 and has since been utilized in wired local area networks to provide a faster speed compared to the original 10 Mbps Ethernet, designated as 10BASE-T. Fast Ethernet operates over twisted pair or fiber optic cables and is compatible with the previous standard while offering increased network performance.