A company hired a technician to find all the devices connected within a network. Which of the following software tools would BEST assist the technician in completing this task?

Which of the following systems would MOST likely be found in a screened subnet?

Which of the following OSI model layers is where conversations between applications are established, coordinated, and terminated?

A company requires a disaster recovery site to have equipment ready to go in the event of a disaster at its main datacenter. The company does not have the budget to mirror all the live data to the disaster recovery site. Which of the following concepts should the company select?

A network administrator wants to analyze attacks directed toward the company's network. Which of the following must the network administrator implement to assist in this goal?