Which device might be installed at a branch office to enable and manage an IPsec site-to-site VPN?（）

On which options are standard access list based?（）

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?（）

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

What is the default administrative distance of OSPF?（）

Which command encrypts all plaintext passwords?（）

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?（）

Which statement describes the rule of split horizon?（）

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

An employee of ABC company has move to an office on a different floor. Although the administrator is able to telnet to all of the routers,the address of Switch F is needed in order to verify that the employee remains in the same VLAN.Which action could be used by the administrator to find the IP address of Switch F?（）