What is the effect of using the service password-encryption command?

Refer to the exhibit.

The network administrator cannot connect to Switch1 over a Telnet session, although the hosts
attached to Switch1 can ping the interface Fa0/0 of the router. Given the information in the graphic
and assuming that the router and Switch2 are configured properly, which of the following
commands should be issued on Switch1 to correct this problem?

Which Layer 2 protocol encapsulation type supports synchronous and asynchronous circuits and
has built-in security mechanisms?

Which statement about access lists that are applied to an interface is true?

Which parameter CM parameters are used to calculate OSPF cost in Cisco routers?

Refer to the exhibit.

Four Cisco 2950 switches are set to their default priority settings. During the spanning-tree
process, which switch will be elected as the root bridge?

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?

Refer to the exhibit.

A network administrator attempts to ping Host2 from Host1 and receives the results that are
shown. What is a possible problem?