In a brute-force attack， what percentage of the keyspace must an attacker generally search through until heor she finds the key that decrypts the data？（）
A: Roughly 50 percent
B: Roughly 66 percent ActualTests.com
C: Roughly 75 percent
D: Roughly 10 percent
A: Roughly 50 percent
B: Roughly 66 percent ActualTests.com
C: Roughly 75 percent
D: Roughly 10 percent
举一反三
- The fact that an increase in the unemployment rate by 1 percent will lead to a roughly 2 percent loss in output is referred to as A: the sacrifice ratio B: the replacement ratio C: the misery index D: the Beveridge relationship E: Okun’s law
- What is the percentage of peoplewho have read 2-3 books last year according to the survey result? A: Lessthan 10 percent B: About20 percent C: Morethan 20 percent D: About40 percent
- An engine converts 5,000 J of thermal energy into 2,500 J of work. What is the efficiency of the engine? A: 10 percent B: 20 percent C: 50 percent D: 100 percent
- If the nominal interest rate per year is 10 percent and the inflation rate is 4 percent, what is the real rate of interest? A: 10.0 percent B: 4.1 percent C: 5.8 percent D: 14.0 percent
- The average earnings of women in the U.S. are roughly 20 percent lower than the average earnings of men. The situation is even worse for _________ A: black women. B: white women. C: Asian women. D: old women.