Computers and Technology, 13.06.2020 20:57 25jzaldivar
DRU is a small brokerage house that enables its clients to buy and sell
stocks over the Internet, as well as place traditional orders by phone or Fax. DRU has
just decided to install a new e-mail package. One vendor offering an SMTP-based
two-tier client -server architecture. The second vendor is offering a Web-based e-mail
architecture. DRU doesn’t understand either one but thanks the Web-based one should
be better because, in their words, “the Web is the future”.
Answers: 3
Computers and Technology, 23.06.2019 10:20
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)?
Answers: 1
Computers and Technology, 24.06.2019 08:20
Evaluate the scenario below and indicate how to handle the matter appropriately. situation: michael received an e-mail from what he thought was his doctor’s office, requesting his social security number. since he had just been in to see his doctor last week, he replied to the e-mail with his social security number.
Answers: 2
Computers and Technology, 24.06.2019 13:30
What is the most important for you to choose before you build a network?
Answers: 1
DRU is a small brokerage house that enables its clients to buy and sell
stocks over the Internet, a...
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