When you have access to a multiuser computer system, what responsibilities do you have when selecting your password?

The responsibilities you have are Use characters other than just AZ. If passwords are chosen from the letters AZ, there are only 26 possibilities for each character. Adding digits expands the number of possibilities to 36. Using both uppercase and lowercase letters plus digits expands the number of possible characters to 62

Explanation:

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b. take periodic breaks and alternate between tasks.