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Questions 1 to 5 of 8

1. 1. A four-digit PIN uses the digits 0 to 9 in each of its four places. How many different PINs are possible?

   1,00010,000100,0001,000,000
2. 2. What does this program print? ``python import math print(round(6 * math.log2(7776), 1)) ``

   12.96.077.57776.0
3. 3. Adding a number to the end of a passphrase, so forest-candle-meadow-kettle becomes forest-candle-meadow-kettle2, makes a new password that guessing programs will not try.

   False, because guessing programs try a number at the end as a matter of courseTrue, because a number at the end makes the passphrase unique
4. 4. Six words from the 7,776-word list are about as strong as twelve random characters from letters, digits and symbols.

   False, because a passphrase always has far less entropy than any random passwordTrue, because six words give about 77.5 bits and twelve random characters from the full set give about 78.7 bits
5. 5. Why does the lesson's password program use the secrets module and not random?

   secrets is faster to runrandom cannot make strings longer than 8 charactersrandom only works with word listssecrets uses the operating system's source of unpredictable random numbers