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What are the first two characters of an MD5 hashed password?
A. $1
B. $5
C. $6
D. 2a
Correct Answer: A
Explanation/Reference:
From the man pages:
$id$salt$encrypted
The following values of id are supported:
ID | Method
-——————————————————–
1 | MD5
2a | Blowfish (not in mainline glibc; added in some Linux distributions)
5 | SHA-256 (since glibc 2.7)
6 | SHA-512 (since glibc 2.7)
