When was the idea of the cloud first developed?
a. 1960s
b. 2000s
c. 1990s
d. 1980s
Answer: c. 1990s
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All of the following are network topologies EXCEPT ________
A) switch B) bus C) ring D) star
Consider a relation DirectFlight(StartCity, DestinationCity) that lists all direct ?ights among cities. Use the recursion facility of SQL:1999 to write a query that ?nds all pairs city 1 , city 2 such that there is an indirect ?ight from city 1 to city 2 with at least two stops in between.
What will be an ideal response?
The use of function ____________________ permits the compiler to error-check data types.
Fill in the blank(s) with the appropriate word(s).
Which Linux-based active OS active fingerprinting tool uses a mixture of TPC, UDP, and ICMP to avoid detection?
a. Nmap b. Xprobe 2 c. Winfingerprint d. P0f