An office is using 802.11a to network the entire office. When a visitor brings a personal
laptop to the office, the visitor is not able to connect to the network. Which of the following is
the reason why visitors are unable to connect?

A company wants to implement a wireless encryption method, but wants the key to be a
simple phrase so they can easily allow visitors to connect. Which of the following wireless
encryption methods should they employ?

An administrator needs to create a subnet that will accommodate up to 4000 hosts on the
same subnet but not more than 6000. Which of the following network addresses would the
administrator use to accommodate this request?

172.20.0.112 represents an address at which of the following layers of the OSI model?

A distribution layer switch with an SC GBIC that has a fiber connection back to the core has
gone bad and needs to be replaced with a newer model and an LC GBIC. The fiber patch
cable was replaced with a known good LC patch cable. After replacing the switch, the fiber
connection shows no link. Which of the following is MOST likely the cause of the problem?

Which of the following logical topologies uses distributed authentication?

A technician is configuring ports on a switch. The technician turns off auto-negotiation and
sets the port speed to 1000 Mbps. A user# s PC is no longer able to access the network.
Which of the following is MOST likely the problem?

A helpdesk team is unable to agree on a solution to an issue. Each technician presents their
own solution to the problem. When a solution is agreed upon, which of the following
documentation MOST likely needs to be reviewed and possibly updated?

Which of the following devices should be used to connect a router to a T1 line?

Users are reporting that they no longer have network access. A computer icon shows that
network connection is unplugged. Which of the following is the MOST likely reason for this?