LPIC-2 Network Client Management Practice Question
Which THREE statements about PAM configuration are correct? (Select three.)
⚠ Common exam trap
Many candidates confuse 'required' with 'requisite', mistakenly thinking that 'required' causes immediate failure, when in fact 'required' allows the stack to continue processing, while 'requisite' is the flag that immediately aborts on failure.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The order of modules in a stack affects the outcome.
PAM (Pluggable Authentication Modules) processes modules in a defined order within a stack, and the control flags (required, requisite, sufficient, optional) determine how the success or failure of each module affects the overall authentication result. The order matters because a 'sufficient' module that succeeds can cause authentication to succeed immediately, bypassing later modules, while a 'required' module that fails can cause authentication to fail after all modules in the stack have been evaluated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
The control flag 'required' means the module must succeed; if it fails, authentication fails immediately.
Why it's wrong here
Immediate failure is 'requisite', not 'required'.
- ✗
The module type 'auth' is used for account management.
Why it's wrong here
'account' is for account management, not 'auth'.
- ✓
The order of modules in a stack affects the outcome.
Why this is correct
PAM module order is significant.
- ✓
The control flag 'requisite' means the module must succeed, and if it fails, no further modules are called.
Why this is correct
Correct description of 'requisite'.
- ✓
The control flag 'sufficient' means that if the module succeeds, authentication succeeds immediately.
Why this is correct
Correct description of 'sufficient'.
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Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This LPIC-2 practice question is part of Courseiva's free LPI certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the LPIC-2 exam.