Which of the following steps are essential to enable SSH access on a network switch? $($Choose three$)1.$ Assigning an IP address and issuing no shutdown to all interfaces $2.$ Configuring the VTY lines to allow SSH access $3.$ Setting the domain$-$name for the switch $4.$ Generating cryptographic keys $5.$ setting the corect time a date $6.$ Configuring a default gateway on the switch