
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
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Q2. Consider the following options for characters in setting a password:
- Digits = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 }
- Letters = { a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t, u, v, w, x, y, z }
- Special characters = { *, &, $, # }
Compute the number of passwords possible that satisfy these conditions:
- Password must be of length 8.
- Characters can be special characters, digits, or letters.
- The first character must be a letter.
- Characters may be repeated.
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