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

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

At which layer of the OSI model dose PPP perform?（）

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?（）

Which command is used to display the collection of OSPF link states?（）

A network administrator is planning a network installation for a large organization.The design requires 100 separate subnetworks,so the company has acquired a Class B network address.What subnet mask will provide the 100 subnetworks required, if 500 usable host addresses are required per subnet?（）

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

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

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?（）