Every 2 seconds
Every 10 minutes
Every 30 seconds
switchport trunk on
switchport mode trunk
During high-traffic periods
After broken links are reestablished
When upper-layer protocols require high reliability
In an improperly implemented redundant topology
The port is experiencing errors.
The port is shut down.
The port is in STP blocking mode.
Nothing; this is normal.
1 and 3
2 and 4
1, 3 and 4
All of the above
It sends back the protocol received from a router as a poison pill, which stops the regular updates.
It is information received from a router that can't be sent back to the originating router.
It prevents regular update messages from reinstating a route that has just come up.
It describes when a router sets the metric for a downed link to infinity.
show mac filter
show mac address-table
show mac filter-table
The Frame Relay encapsulation on the physical interface
The local DLCI on each subinterface
An IP address on the physical interface
The subinterface type as point-to-point
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23 Jul, 2019
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23 Jul 15:37 PM