156-315.81.20 Identity Awareness Practice Question
An administrator configures Identity Awareness in a Check Point environment using Active Directory Query as the primary identity source. Users suddenly report that access policies based on user groups are randomly failing. What is the most likely root cause of this behavior?
⚠ Common exam trap
Candidates often blame the gateway's configuration or SIC, failing to consider that the Active Directory environment itself might be purging the very event logs the gateway relies on for tracking.
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 Active Directory Domain Controllers are purging security event logs too quickly, causing the gateway to miss logon events.
Active Directory Query relies on tracking user logons via Windows security event logs. If the Security Event log fills up quickly and overwrites old events before the Security Gateway queries them, user identity mapping is lost. Administrators must monitor event log sizes and generation rates carefully to prevent authentication state dropouts in high-traffic enterprise environments.
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 Identity Awareness Web API service on the Security Gateway stopped responding because port 443 is blocked.
Why it's wrong here
Active Directory Query does not utilize the Identity Awareness Web API for standard domain user mapping operations. Blocking port 443 would impact Captive Portal or Identity Agent communications rather than interrupting the underlying WMI or RPC queries sent directly to Active Directory domain controllers.
- ✓
The Active Directory Domain Controllers are purging security event logs too quickly, causing the gateway to miss logon events.
Why this is correct
Active Directory Query actively polls domain controller security event logs for specific logon event IDs. When logs wrap around and overwrite historical data too rapidly, the gateway loses track of active sessions, leading to intermittent policy enforcement failures across the user population.
- ✗
Check Point Identity Agents must be forcibly reinstalled on every workstation to refresh the Kerberos ticket cache.
Why it's wrong here
Reinstalling client-side Identity Agents is completely unnecessary when troubleshooting server-side Active Directory Query issues. The query mechanism operates independently of the agent software by leveraging Windows domain controller security logs directly through standard remote procedure call mechanisms.
- ✗
The LDAP Account Unit configuration is missing the required Read-Write credentials for the domain administrator account.
Why it's wrong here
AD Query requires read access to domain controller event logs rather than standard LDAP directory search capabilities. While LDAP queries use account unit credentials for object attribute resolution, basic session tracking via AD Query functions properly with standard read-only domain privileges.
About these practice questions
Courseiva writes every 156-315.81.20 question from scratch — 210 in total, each with an explanation and a wrong-answer breakdown. None are copied from real exams or dumps. Learn why practice questions differ from exam dumps →
JA
Written and reviewed by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
Last reviewed September 2026 · checked against the official Check Point exam blueprint
This 156-315.81.20 practice question is part of Courseiva's free Check Point 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 156-315.81.20 exam.