Which technology discourages attackers because they cannot identify a specific computer to attack on the internal network?
A. Telnet
B. NAT
C. VPN
D. DMZ
Answer: B
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What colleges are displayed in the list box by the following program segment?
``` Dim ivies() As String = {"Harvard", "Princeton", "Yale", "Dartmouth", "Brown", "Columbia", "Univ. of PA", "Cornell"} Dim query = From college in ivies Where college.Length <= 9 Order By college.Length Descending, college Descending Select college lstBox.Items.Add(query.Last) lstBox.Items.Add(query.Min) ``` (A) Dartmouth and Princeton (B) Yale and Brown (C) Yale and Cornell (D) Dartmouth and Yale
The insert function of HashTable can return false because:
A. the hash table may be full B. we may be out of heap memory C. a duplicate key already exists D. the client supplied a faulty hash function
Virtualization allows the software of multiple physical computers to be shared by multiple operating systems running at the same time.
Answer the following statement true (T) or false (F)
A transaction processing system is characterized by its ability to:
A. collect, display, and modify transactions. B. store transactions. C. list transactions. D. all of the above.