Recall the CFG G4 that we gave in Example 2.4. For convenience, let’s rename its variables with single letters as follows. E → E + T | T T → T x F | F F → (E) | a Give parse trees and derivations for each string. a. a b. a+a c. a+a+a

Most information security incidents will occur because of select one: a. users who do not follow secure computing practices and procedures b. increases in hacker skills and capabilities c. poorly designed network protection software d. increasing sophistication of computer viruses and worms