A primary advantage of the ability to reference data in multiple workbooks is that you can access data at its source in its ________ location

Which of the following is NOT a mode used by block ciphers?

A. ECB B. CBC C. CFB D. CTR E. IV

Encapsulating IP packets inside another protocol, like frame relay, to pass them over a wide area network, and removing them from this protocol at the other end, is known as

a. routing b. bridging c. tunneling d. none of the above