In which of the following scenarios should a technician use a cross-over cable to provide connectivity?

A network technician is adding workstation to the enterprise network. After bringing the PCs online. The technician receives reports from random users that they cannot log on.
The technician checks and finds everything is functioning for most users. Which of the following is MOST likely causing the problem?

A technician logs onto a system using Telnet because SSH is unavailable. SSH is enabled on the target device, and access is allowed from all subnets. The technician discovers a critical step was missed. Which of the following would allow SSH to function properly?

A computer lab on a campus network was recently reconfigured using recycled network cables. One of the
24 computers in the lab is unable to connect to the network after the upgrade. A network technician successfully uses the cable in question to connect directly to another computer. Which of the following is MOST likely issue with the cable?

A wireless technician needs to deploy a single 802.11 standard that supports both 2.4GHz and 5GHz frequencies with up to 40MHz channel widths. Which of the following wireless standards should the technician configure?