i want soulution with out code

For example, an acceptable password sample is gB21@hill while gPanth2! and A@ aHCDEF\&* will be considered unacceptable (with respect to the prescribed format). The bank also requires that each password be changed at least once every five years. 1. Assume that 1,000,000 passwords can be tested per second, calculate the probability that a hacker can guess a password in the timeframe between two consecutive changes. [2\%] 2. A hacker controls a network of compromised machines (botnet) that can be used to launch the attack. The network consists of 500,000 compromised machines (bots) located in different countries around the globe. Assume that the machines have approximately the same computing capability. The hacker uses a simple strategy consisting of slicing the username space in subsets of equal size, and assigning a subset to each of the bots to conduct the attack in parallel. Calculate the probability that a successful password guess can be obtained in the timeframe between two consecutive changes. Briefly comment the results [2\%]