Which two Ethernet fiber-optic modes support distances of greater than 550 meters?

An inbound access list has been configured on a serial interface to deny packet entry for TCP and UDP ports 21, 23 and 25. What types of packets will be permitted by this ACL? (Choose three.)

Which three options are valid WAN connectivity methods? (Choose three.)

Data transfer is slow between the source and destination. The quality of seivice requested by the transport layer in the OSI reference model is not being maintained. To fix this issue, at which layer should the troubleshooting process begin?

Which of the following statements describe the network shown in the graphic? (Choose two.)

Which items are correct about the routing protocol OSPF? (Choose three.)

Which of the following statements are true regarding bridges and switches? (Choose 3.)

What must be set correctly when configuring a serial interface so that higher-level protocols calculate the best route?

Before installing a new, upgraded version of the IOS, what should be checked on the router, and which command should be used to gather this information? (Choose two.)

The ip subnet zero command is not configured on a router. What would be the IP address of Ethernet 0/0 using the first available address from the sixth subnet of the network
192.168.8.0/29?