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 IPsec security protocol should be used when confidentiality is required?（）

What is the result of issuing the frame-relay map ip 192.168.1.2 202 broadcast command?（）

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

If all OSPF routers in a single area are configured with the same priority value,what value dose a router use for the ODPF router ID in the absence of a loopback interface?（）

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 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?（）

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

What is the default administrative distance of OSPF?（）

Which command displays the CHAP authentication process as it occurs between two routers?（）