A small office's wireless network was compromised recently by an attacker who brute forced a PIN to gain access. The attacker then modified the DNS settings on the router and spread malware to the entire network.
Which of the following configurations MOST likely allowed the attack to take place? (Choose two.)

A new policy requires all users to log on to their corporate workstations using smart card authentication.
Which of the following best practices should be implemented to further secure access to workstations?

After a virus has been spread unknowingly via USBremovable hard drives, a technician is tasked with limiting removable hard drive access to certain network users. USB ports are used for many devices, including scanners, printers, and signature pads, so a policy is created to deny access to removable harddrives only.
When testing the policy, a removable drive is plugged in but can still be accessed. Which of the following command-line tools should the technician use to apply the new policy?

During the firmware upgrade of a web server, a power outage occurred. The outage caused a failure within the upgrade. Which of the following plans must be implemented to revert back to the most recent version of the firmware?

Several mobile users are reporting issues connecting to the WLAN within a warehouse. A technician tests wireless connectivity in the lobby and is able to connect successfully. Mobile users can connect to the Internet using cellular service, but they cannot access any internal resources on the WLAN The technician received alerts of devices failing throughout the network due to a power outage Which of the following is MOST likely causing the wireless issues?