Which of the following elements of planning gap measures the gap between the total potential for
the market and the actual current usage by all the consumers in the market?

Which of the following terms refers to the method that allows or restricts specific types of packets
from crossing over the firewall?

You work as a Network Administrator for NetTech Inc. The company wants to encrypt its e-mails.
Which of the following will you use to accomplish this?

Peter works as a Network Administrator for Net World Inc. The company wants to allow remote
users to connect and access its private network through a dial-up connection via the Internet. All the
data will be sent across a public network. For security reasons, the management wants the data sent
through the Internet to be encrypted. The company plans to use a Layer 2 Tunneling Protocol (L2TP)
connection. Which communication protocol will Peter use to accomplish the task?

Which of the following protocols multicasts messages and information among all member devices in
an IP multicast group?

Which of the following is a method for transforming a message into a masked form, together with a
way of undoing the transformation to recover the message?

Which of the following security devices is presented to indicate some feat of service, a special
accomplishment, a symbol of authority granted by taking an oath, a sign of legitimate employment
or student status, or as a simple means of identification?