What is the default administrative distance of OSPF?（）

What is the subnetwork address for a host with the IP address 201.100.5.68/28?（）

Which encapsulation type is a Frame Relay encapsulation type that is supported by Cisco routers?（）

An administrator must assign static IP addresses to the servers in a network.For network 192.168.20.24/29, the router is assigned the first usable host address while the sales server is given the last usable host address. Which of the following should be entered into the IP propertied box for the sales server?（）

Which command encrypts all plaintext passwords?（）

Which address is the IPV6 all-RIP-routers muticast group address that is used by RIPng as the destaion address?（）

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?（）

Three switches are connected to one anther via trunk ports.Assuming the default switch configuration,which switch is elected as the root bridge for the spanning-tree instance of vlan 1?（）

Which Cisco IOS diagnostics command can disrupt the operation of a router under high-load conditions?（）

Which pairing reflects a correct protocol-and-metric relationship?（）