If a computer is having trouble navigating to a website when you enter the url into the browser’s address box, but is able to access the site when you enter the web server’s ip address, which server available to your network should you make sure is functioning correctly?

In which part of a professional email should you try to be brief, but highly descriptive?

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)?

Using the list, you can select the number of photos that will appear on each slide. a. theme b. frame shape c. pictures in album d. picture layout