Click the Exhibit button.

Based on the output shown in the exhibit, which statement is correct?

Which three BGP attributes are well-known and mandatory? (Choose three.)

How many bytes of overhead are added to a packet traversing a GRE tunnel?

There is a GRE tunnel configured over the Internet between Router-1 and Router-2. An OSPF adjacency is configured over this GRE tunnel.
However, the OSPF adjacency briefly reaches the Full state before it is torn down. This cycle repeats indefinitely.
Which two actions would you perform to solve this problem? (Choose two.)

In which two STP states is a port active and a MAC address learned? (Choose two.)