Which two of these are used in the selection of a root bridge in a network utilizing Spanning Tree Protocol IEEE 802.1D? (Choose two.)
A.
Designated Root Cost
B.
bridge ID priority
C.
max age
D.
bridge ID MAC address
E.
Designated Root Priority
F.
forward delay
Explanation:
Select a root bridge. The root bridge of the spanning tree is the bridge with the smallest (lowest) bridge ID. Each bridge has a unique identifier (ID) and a configurable priority number; the bridge ID contains both numbers. To compare two bridge IDs, the priority is compared first. If two bridges have equal priority, then the MAC addresses are compared. For example, if switches A (MAC=0200.0000.1111) and B (MAC=0200.0000.2222) both have a priority of 10, then switch A will be selected as the root bridge. If the network administrators would like switch B to become the root bridge, they must set its priority to be less than 10.
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….language’s are confusing sometimes maybe extra word might throw you off of obvious answer as the test writer lacked any kind of legitimate comprehension and writing truely challenging questions takes more work then this putz is will to expend.