Which host addresses are members of networks that can be routed across the public Internet? (Choose three.)

A network administrator must configure 200 switch ports to accept traffic from only the currently attached host devices. What would be the most efficient way to configure MAC-level security on all these ports?

What functions do routers perform in a network? (Choose two.)

Which command is used to configure a default route?

What two things will a router do when running a distance vector routing protocol? (Choose two.)

When configuring a serial interface on a router, what is the default encapsulation?

A network administrator wants to ensure that only the server can connect to port Fa0/1 on a Catalyst switch. The server is plugged into the switch Fa0/1 port and the network administrator is about to bring the server online. What can the administrator do to ensure that only the MAC address of the seiver is allowed by switch port Fa0/1 ? (Choose two.)

A national retail chain needs to design an IP addressing scheme to support a nationwide network. The company needs a minimum of 300 sub-networks and a maximum of 50 host addresses per subnet. Working with only one Class B address, which of the following subnet masks will support an appropriate addressing scheme? (Choose two.)

Given the address 192.168.20.19/28, which of the following are valid host addresses on this subnet? (Choose two.)

Which command can enable CDP globally on the router and show the information about directly connected Cisco devices?