Identifying the shadow password field | LPIC-1 102-500 Exam original practice question

107.1Standard

Inspect an /etc/shadow record as an administrator.

alice:$6$examplehash:20000:0:90:7:::

Which field stores a password hash or a lock marker?

Hint 1: Focus on account data

Separate account records, group membership, and home or shell attributes before comparing the commands.

Hint 2: Key terms

Review the short definitions of account records, groups, and login attributes.

/etc/shadow: A protected file containing password hashes and password-aging attributes.
Password hash: A transformed value used for password verification without storing the plaintext password.
Password aging: Controls for password-change dates, minimum and maximum ages, and warning periods.
Lock marker: A marker in a password field that disables password authentication for the account.

Detailed explanation

Incorrect第1フィールド

Incorrect. The first field is the login name.

Correct第2フィールド

Correct. The second field stores the hash or a lock marker such as !.

Incorrect第3フィールド

Incorrect. The third field records the last password-change day.

Incorrect第5フィールド

Incorrect. The fifth field is the maximum password age.

An example you can run in a temporary verification environment.

entry='alice:$6$examplehash:20000:0:90:7:::'; printf '%s\n' "$entry" | cut -d: -f2

$6$examplehash

Foundation review

Check whether the command acts on the current shell, a new process, an existing process, or a file.

Use the supplied command and compare the output with the expected result.

Question IDKP-107-662

EnvironmentPOSIXシェル / 合成レコード

Last technical review2026-08-13

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