156-215.81.20 SIC and SmartConsole Management Practice Question
An administrator has just initialized Secure Internal Communication (SIC) on a new Security Gateway using the one-time password 'CpWk987'. In SmartConsole, the administrator opens the gateway object, goes to the General Properties > Secure Internal Communication section, and enters the same one-time password. After clicking Initialize, the SIC status changes to 'Trust established'. However, the administrator notices that the gateway's SIC status later reverts to 'Unknown' after a few minutes. What is the most likely cause?
⚠ Common exam trap
The trap here is assuming that once SIC trust is established, it remains permanently without any further communication between the gateway and the Management Server.
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 gateway's SIC trust was established, but the gateway is unable to communicate with the Management Server due to a network or routing issue.
SIC trust is not a one-time event; it requires ongoing communication between the gateway and the Management Server. After the initial trust is established, the Management Server periodically checks the gateway's status. If the gateway becomes unreachable due to network problems, the status will revert to Unknown. The other options either describe issues that would prevent initial trust establishment or are not relevant to the SIC status after trust is established.
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 one-time password was not complex enough and was rejected by the gateway's internal policy.
Why it's wrong here
The complexity of the one-time password is not enforced by the gateway during SIC initialization. The gateway accepts the one-time password as long as it matches what was configured via cpconfig. Password complexity rules apply to administrator accounts, not to the SIC one-time password. Therefore, this is not the cause of the SIC status reverting to Unknown.
- ✓
The gateway's SIC trust was established, but the gateway is unable to communicate with the Management Server due to a network or routing issue.
Why this is correct
After SIC trust is established, the gateway and Management Server must maintain ongoing communication. If the gateway cannot reach the Management Server due to a network, routing, or firewall issue, the SIC status will revert to Unknown because the Management Server cannot verify the gateway's status. This is the most likely cause, as the initial trust was successfully established but later lost.
- ✗
The gateway's SIC status reverts to Unknown because the gateway was rebooted before the SIC initialization was fully completed.
Why it's wrong here
A reboot during SIC initialization could interrupt the process, but if trust was already established, the status would typically persist. The scenario states that the status changed to 'Trust established' and then reverted after a few minutes, which suggests an ongoing communication issue rather than a one-time interruption. A reboot is not the most likely cause.
- ✗
The gateway's SIC certificate was not yet issued by the Internal Certificate Authority (ICA) on the Management Server.
Why it's wrong here
If the ICA had not issued the certificate, the SIC status would not have reached 'Trust established' in the first place. The initialization process requires the ICA to issue a certificate to the gateway. Since trust was established, the certificate was issued successfully. The reversion to Unknown is due to a different issue, such as a mismatch or communication problem.
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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
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