You're shopping for a new router and are attracted by the advertising for a 600n model. upon examining the specifications, you see that the router transmits 300+300, so you know it is using broadcast channels.

Which of the following are types of formatting you can apply to a spreadsheet? choose all that apply.

When you interpret the behavior of others according to your experiences and understanding of the world your evaluation is

Suppose there is a relation r(a, b, c) with a b+-tree index with search keys (a, b).1. what is the worst-case cost of finding records satisfying 10 < a < 50 using this index, in terms of the number of records n1, retrieved and the height h of the tree? 2. what is the worst-case cost of finding records satisfying 10 < a < 50 and 5 < b < 10 using this index, in terms of the number of records n2 that satisfy this selection, as well as n1 and h defined above? 3. under what conditions on n1 and n2, would the index be an efficient way of finding records satisfying the condition from part (2)?