"in an attempt to secure his wireless network, bob turns off broadcasting of the ssid. he concludes that since his access point requires the client computer to have the proper ssid, it would prevent others from connecting to the wireless network. unfortunately, unauthorized users are still able to connect to the wireless network. why do you think this is possible? "

Microsoft introduced active directory with windows 2000. in server 2012, it is in now version 4. what are some new features in the new ad that were not present in windows 2000 ad?

Apower user needs you to install a second type of operating system on his computer to increase efficiency while running some specialized software programs. which installation technique should you 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)?