Exploring Telnet and SSH Concepts

What is the primary purpose of the Telnet protocol?

• To encrypt data for secure transmission over the Internet.

• To facilitate file transfers between computers.

• To establish a graphical user interface for remote access.

• To provide a bidirectional interactive text-based communication facility over the Internet.

How does SSH enhance security compared to Telnet?

• SSH requires a graphical interface, while Telnet does not.

• SSH is slower than Telnet due to encryption overhead.

• SSH encrypts data, while Telnet transmits data in plain text.

• Telnet uses stronger authentication methods than SSH.

What command is used to initiate a Telnet session in Ubuntu?

• ssh

• ftp

• telnet

• ping

Which port does Telnet typically use for communication?

• 21

• 25

• 80

• 23

What are the main advantages of using SSH over Telnet?

• Telnet provides better speed than SSH.

• Telnet offers built-in encryption features.

• The main advantages of using SSH over Telnet are encryption, secure authentication, and additional features like file transfer and port forwarding.

• SSH is not compatible with modern operating systems.

What is the default port for SSH connections?

• 23

• 21

• 80

• 22

Explain the concept of public and private keys in SSH.

• In SSH, the public key is shared for access, and the private key is kept secret to authenticate the user.

• The public key is used to encrypt data, while the private key is used to decrypt it.

• Both keys are shared publicly to ensure security in SSH connections.

• The private key is shared with anyone who needs access to the server.

What is the command to connect to a remote server using SSH?

• ssh -p 22 username@hostname

• ssh connect username@hostname

• ssh username@hostname

• ssh -r username@hostname

What is the significance of encryption in SSH?

• Encryption in SSH is used to compress data for faster transmission.

• Encryption in SSH is primarily for user authentication purposes.

• Encryption in SSH secures data transmission, protecting it from eavesdropping and ensuring confidentiality.

• Encryption in SSH allows for unlimited data transfer without any security concerns.

What is the role of a terminal emulator like PuTTY?

• The role of a terminal emulator like PuTTY is to provide a text-based interface for connecting to and interacting with remote systems.

• To serve as a web browser for accessing online content.

• To manage file transfers between local and remote systems.

• To provide a graphical interface for local applications.