Jeff, a network administrator, is installing an 802.11n network. Which of the following should he consider FIRST?

A network technician is having connectivity issues from the T3 to the fiber module of the switch.
The technician suspects that the fiber cable might be faulty. Which of the following tools can the
network technician use to confirm this?

Which of the following technologies implements authentication headers and encapsulating security payloads?

A user reports that there are multiple pop-ups appearing even though the Internet browser is
closed. Upon further investigation, the technician discovers that the user may have typed an
incorrect URL in the browser. Which of the following is the NEXT step the technician should take?

Jeff, a network administrator, needs to forward HTTP traffic from a SOHO firewall public IP to the internal web servers private IP. Which of the following can Jeff implement?

A network technician needs to address bandwidth issues on the wireless network. There are
currently four 802.11n access points. The technician would like to increase the bandwidth. Which
of the following would be the BEST solution?

Which of the following implements two-factor authentication?

At which of the following OSI layers does the CSU/DSU operate?

Which of the following protocols works at the LOWEST layer of the OSI model?

A technician needs to connect a laptop to configure a switch. Which of the following would work
BEST for the connection?