Users at a remote site are unable to establish a VPN to the main office. At which of the following layers of the
OSI model does the problem MOST likely reside?

A network technician is setting up a wireless access point that would only allow a certain laptop to be able to
access the WAP. By using ACL, which of the following would be filtered to ensure only the authorized laptop
can access the WAP?

Which of the following is the common port used for IMAP?

A company has just installed a new network switch for an expanding department. The company is also piloting
the use of a VoIP phone system for this department.Which of the following should be enabled on the new
network switch?

Which of the following network protocols is used toresolve FQDNs to IP addresses?

Which of the following network protocols is used for a secure command line interface for management of
network devices?

Which of the following network protocols is used totransport email between servers?

A user is having difficulty connecting a laptop to the company’s network via a wireless connection. The user
can connect to the network via a wired NIC. The technician suspects the laptop’s wireless NIC has failed. The
technician performs hardware diagnostics on the wireless NIC and discovers the hardware is working fine.
Which of the following network troubleshooting methodology steps should the technician do NEXT?

Ann, a technician, installs a new WAP and users areable to connect; however, users cannot access the
Internet. Which of the following is the MOST likelycause of the problem?

An administrator is using a packet sniffer to try to determine what is causing the traffic on the network. The
administrator sees a lot of packets on port 25. Which of the following traffic types is MOST likely using port 25?