A network engineer is configuring a network to be able to relay IPv6 packets. The network only supports IPv4 and does not have dual-stack support. Which of the following can be used to successfully relay IPv6 packets over this network?

Binary signals are transmitted to the local tower by alternating between two frequencies using a method called ________

A) frequency-shift keying (FSK) B) first generation (1G) C) time-division multiple access (TDMA) D) digital signal processor (DSP)

Design the outline of a BPEL process that the vendor can use to describe the following business process:

When you buy something over the Internet, you send the vendor the name, catalog number, and price of the item you want. Then the vendor sends you a form to fill out, containing the name, catalog number, and price of the item and requesting your name, address, credit card number, and expiration date. You return the form to the vendor. The vendor then sends your name, credit card number, and the price of the item to the credit card company to be approved. After it is approved, the vendor sends you a confirmation message. Then it sends a message to the warehouse to ship the item.