[&] Which of the following is the primary purpose of Telnet and SSH? (Select the best answer)
- To allow a person to remotely connect to the GUI of a computing device
- To allow a person to remotely connect to the shell of a computing device -- Correct
- To allow a person to remotely push data to the hard drive of a computing device
- To allow a person to remotely pull data from the hard drive of a computing device

[&] Which of the following is the protocol and message type used when the "ping" command is invoked? (Select the best answer)
- CGMP Echo Request
- ICMP Echo Request -- Correct
- IMGP Echo Request
- IGMP Echo Request

[&] If you try to ping a device and receive no reply, what could this indicate? (Select the best answer)
- ICMP has been disabled on that device
- The device is powered off
- There is something between you and the device that is blocking your pings
- All of the above are correct -- Correct
- None of these are correct

[&] Which of the following statements are true regarding Telnet and SSH? (**Select four answers**)
- Telnet is port number 22.
- Telnet and SSH both use TCP at the Transport Layer of the OSI model. -- Correct
- Telnet encrypts all data sent during the session.
- SSH encrypts all data sent during the session. -- Correct
- Telnet is port number 23. -- Correct
- Telnet and SSH both use UDP at the Transport Layer of the OSI model.
- SSH is port number 22. -- Correct
- SSH is port number 23.

[&] What TCP or UDP port number is reserved for TFTP? (Select the best answer)
- TCP port 68
- UDP port 69 -- Correct
- UDP port 68
- TCP port 69

[&] What is a primary difference between SSH and Telnet? (Select the best answer)
- Telnet encrypts all data transmission between client and server
- SSH encrypts all data transmission between client and server -- Correct
- SSH uses UDP which requires less overhead than Telnet which requires TCP
- Telnet uses UDP which requires less overhead than SSH which requires TCP

[&] Which of the following configurations would be used to ensure that incoming, remote sessions for the CLI must use SSH only? (**Select the best answer**)
- * `Device# config t`

* `Device(config)transport input ssh`
- * `Device# config t`

* `Device(config)#line vty 0 4`

* `Device(config-line)input ssh only`
- * `Device# config t`

* `Device(config)#line vty 0 4`

* `Device(config-line)transport input ssh` -- Correct
- * `Device# config t`

* `Device(config)#line tty 0 4`

* `Device(config-line)input ssh only`
- * `Device# config t`

* `Device(config)#line con 0`

* `Device(config-line)transport input ssh`
- * `Device# config t`

* `Device(config)#line tty 0 4`

* `Device(config-line)transport input ssh`

[&] Which of the following statements are correct about Telnet and SSH? (Select two answers)
- Telnet utilizes TCP reserved port 23 -- Correct
- Telnet utilizes TCP reserved port 22
- SSH utilizes TCP reserved port 22 -- Correct
- Telnet utilizes TCP reserved port 21
- SSH utilizes TCP reserved port 23
- SSH utilizes TCP reserved port 21

[&] Which of the following statements is true about TFTP and FTP? (Select the best answer)
- Neither FTP nor TFTP provide reliable transfer of data between client and server
- Only TFTP provides reliable transfer of data between client and server
- Both FTP and TFTP provide reliable transfer of data between client and server -- Correct
- Only FTP provides reliable transfer of data between client and server