Which IOS command is used to initiate a login into a VTY port on a remote router?

Which IOS command results in the output shown in the following?
— System Configuration Dialog
— At any point you may enter a question mark ‘?’ for help.
Use ctrl-c to abort configuration dialog at any prompt.
Default settings are in square brackets ‘[]’.
Would you like to enter the initial configuration dialog? [yes/no]:

The following commands are entered on the router:
Burbank(config)# enable secret fortress
Burbank(config)# line con 0
Burbank(config-line)# login
Burbank(config-line)# password n0way1n
Burbank(config-line)# exit

Burbank(config)# service password-encryption
What is the purpose of the last command entered?

At startup, what does a router do if it cannot access a configuration file?

At the global configuration prompt, the administrator has just entered the following command on a
router that has not been previously configured for RIP:
RouterA(config)# router rip
What state is the router now in after executing the command?

Refer to the exhibit.

Based only on the command output, what is true about interface Serial 0/0/0?

A receiving host has failed to receive all of the segments that it should acknowledge. What can the
host do to improve the reliability of this communication session?

Which layer of the TCP/IP stack combines the OSI model physical and data link layers?

How does a switch differ from a hub?

Refer to the exhibit.

The host in Kiev sends a request for an HTML document to the server in
Minsk. What will be the source IP address of the packet as it leaves the Kiev router?