What is a VTY connection? A. A virtual line port set up after a Telnet or SSH connection is established between a user terminal and a device. B. A method of accessing the device in Command Line Interface (CLI) mode. C. A serial port provided by the main control board of a device. D. A type of console port.

A VTY connection refers to a Virtual Teletype. It is a command line interface provided by a network device like a router or a switch, which allows users to interact with the device. Here are the answers to your options:

A. Yes, a VTY connection is a virtual line port that is set up after a Telnet or SSH connection is established between a user terminal and a device. This allows the user to send commands to the device and receive responses.

B. Yes, a VTY connection is a method of accessing the device in Command Line Interface (CLI) mode. This is the primary way network administrators configure and manage network devices.

C. No, a VTY connection is not a serial port provided by the main control board of a device. It is a virtual connection, not a physical one.

D. No, a VTY connection is not a type of console port. While both provide command line interfaces, a console port is a physical port on the device, while a VTY connection is a virtual connection established over a network.

A VTY connection refers to a Virtual Teletype. It is a command line interface provided by a network device like a router or a switch, which allows users to interact with the device. Here are the answers to your options:

A. Yes, a VTY connection is a virtual line port that is set up after a Telnet or SSH connection is established between a user terminal and a device. This allows the user to send commands to the device and receive responses.

B. Yes, a VTY connection is a method of accessing the device in Command Line Interface (CLI) mode. This is the primary way that network administrators interact with network devices.

C. No, a VTY connection is not a serial port provided by the main control board of a device. A serial port is a physical interface through which information transfers in or out one bit at a time.

D. No, a VTY connection is not a type of console port. A console port is a physical port on a network device that allows local access, while a VTY connection allows remote access.