A network technician is troubleshooting a problem with a user's client-to-site VPN connection. The user is unable to establish a connection to the server, but the error message that appears on screen does not contain useful information. Which of the following should the technician do NEXT to troubleshoot the issue?

A network administrator needs to be able to burst datacenter capacity during peak times, but does not want to pay for on-premises hardware that is not used during off-peak times. Which of the following would aid in this scenario?

A network administrator configures a router with the following IP address information:
Gigabit Ethernet 1 Interface: 10.10.0.1/24
Serial 0 Interface: 10.10.0.253/30
Clients are connected to a switch on the gigabit Ethernet interface; the ISP is connected to the Serial 0
interface. When the router configuration is complete and client devices are reconfigured, all clients report
that they are unable to connect to the Internet. Which of the following is the MOST likely reason?

Which of the following could be used to stop unknown threats?

A technician needs to manage equipment using either an IP address or a serial port. There is a pair of copper wires from the management center to the location of the equipment. Which of the following networking devices should be used to successfully communicate to the equipment?