Teresa's technology professor explains to her class that they are most likely more familiar with secondary storage technologies than primary storage technologies. Why? because they are more heavily advertised than primary storage technologies on social media
because they probably use them to transfer information to and from different computers when not relying on the cloud
because they are far more important than primary storage technologies
because not all computers have primary storage technologies but absolutely all computers have secondary storage technologies

If a client wants to make minor edits, what should he/she use?

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)?

Explain how email technologies enable the exchange of messages between users. find out the typical parts of an email address and explain each part.