A(n) ____ communicates using upstream and downstream frequencies (channels) that are already allocated by a cable service.

If you would like to add data from an Excel spreadsheet to an existing Access table, you might use a(n) ________ query

Fill in the blank(s) with correct word

Consider the following two sequences: X = < B, C, D, C, A, B, C >, and Y = < C, A, D, B, C, B >. What is the length of the longest common subsequence?

a. 4 b. 5 c. 3 d. 2