OSPF must be configured between routers R1 and R2. Which OSPF configuration must be applied to router R1 to avoid a DR/BDR election?

Refer to the exhibit.

How must OSPF be configured on the GigabitEthernet0/0 interface of the neighbor device to achieve.

Aswitch receives a frame with the destination MAC address 3C:5D: 7E:9F: 1A:2B.
Switch# show ethernet-frame-and-mac-address-table

How does the switch handle the frame?

PC1 tries to send traffic to newly installed PC2. The PC2 MAC address is not listed in the MAC address table of the switch, so the switch sends the packet to all ports in the same VLAN Which switching concept does this describe?

Refer to the exhibit.

If the network environment is operating normally, which type of device must be connected to interface FastEthernet 0/1?