Which IEEE protocol defines the Spanning Tree protocol?
A.
IEEE 802.1D
B.
IEEE 802.11
C.
IEEE 802.5
D.
IEEE 802.3
Explanation:
The 802.1D spanning tree protocol is an Ethernet link-management protocol that provides link
redundancy while preventing routing loops. Since only one active path can exist for an Ethernet
network to route properly, the STP algorithm calculates and manages the best loop-free path
through the network. IEEE 802.5 specifies a token-passing ring access method for LANs. IEEE 802.3
specifies an Ethernet bus topology using Carrier Sense Multiple Access Control/Carrier Detect
(CSMA/CD). IEEE 802.11 is the IEEE standard that specifies 1 Mbps and 2 Mbps wireless connectivity
in the 2.4 MHz ISM (Industrial, Scientific, Medical) band. Source: Designing Network Security by
Merike Kaeo (Cisco Press, 1999).