What is the default administrative distance of OSPF?（）

Which name describes an IPV6 host-enable tunneling technique that uses IPV4 UDP,does not require dedicated gateway tunnels,and can pass through existing IPV4 NAT gateways?（）

A network administrator needs to configure a serial link between the main office and a remote location.The router at the remote office is a non-cisco router. How should the network administrator configure the serial interface of the main office router to make the connection?（）

You have been asked to come up with a subnet mask that will allow all three web servers to be on the same network while providing the max number of subnets.Which network address and subnet mask meet this requirement?（）

Which command encrypts all plaintext passwords?（）

On which options are standard access list based?（）

At which layer of the OSI model is RSTP used to prevent loops?（）

Which statement is true, as relates to classful or classless routing?（）

Three access ports have been installed and configured to a small office.What term defines the wireless topology?（）

What is the purpose of the cisco Vlan Trunking protocol?（）