Troubleshooting Expert (CCTE) - R81 Free Sample Questions

The most effective and immediate mitigation is to disable logging on the rule that is generating an excessive number of log entries. This action directly addresses the source of the high CPU on the fwk worker core, which is heavily involved in log processing, without affecting the security policy's enforcement. Disabling a core, increasing log storage, or enabling SecureXL path acceleration are either too disruptive, irrelevant to the immediate CPU issue, or would not address the root cause of excessive logging.

The 'NO_PROPOSAL_CHOSEN' notification specifically indicates a failure to agree on a set of cryptographic algorithms for the IKE Security Association. This means the initiating gateway proposed a set of algorithms (e.g., AES-256, SHA256, DH Group 14) that the responding gateway could not or would not accept. Mismatched pre-shared keys would result in an 'INVALID_KEY_INFORMATION' error later in the exchange, while incorrect encryption domains affect Phase 2, not IKE_SA_INIT. A routing issue would typically prevent the IKE packets from arriving at all.

Given that the service is listening and basic ICMP/UDP reachability (traceroute) is confirmed, the issue is likely specific to TCP connectivity on port 18191. The most direct way to verify if the gateway's connection attempt is reaching the Management Server is to perform a packet capture on the server, filtering for that specific port. This will confirm or deny the presence of an intermediate network device (like a firewall) that is blocking the TCP handshake. Restarting services or rebooting is not a targeted troubleshooting step at this stage.

False. fw ctl zdebug is a simplified debug utility that uses a much smaller, predefined buffer and a limited set of debug flags (primarily for drops). It is designed for quick, low-impact troubleshooting of dropped packets. fw ctl debug is the full-featured kernel debugger that allows for large, configurable buffers and a wide array of debug flags for in-depth analysis of various kernel modules. They are not functionally identical.

The cpinfo utility is the standard Check Point tool for collecting a wide range of diagnostic information. The -z flag compresses the output into a .tgz file, and the -o flag specifies the output filename. This is the required format for submitting data to Check Point Support for analysis.

Check Point's Identity Awareness blade uses a priority order to resolve conflicts when multiple identity sources can claim the same IP address. In this scenario, because the POS terminals have a static IP-based Access Role, that identity source is likely prioritized higher than AD Query. When a manager's laptop gets an IP on that subnet, the gateway first matches it to the IP-based Access Role and stops processing further identity sources. To fix this, the priority of 'AD Query' must be moved above 'Access Roles' so that user-based identities are checked before network-based ones.

The solr process is a child process managed by cpm. The correct and safe way to restart it is by using the cpm_control.sh script with the -n solr flag. This ensures a graceful shutdown and restart of the indexing service without affecting the main cpm process or other services. Using cpstop; cpstart would restart all Check Point services, which is too disruptive. evstop; evstart controls the SmartEvent processes, not Solr. A kill -9 is an unsafe termination and should be avoided as cpm might not restart it correctly.

Certain complex NAT configurations cannot be handled by the SecureXL acceleration path and must be sent to the FW path (F2F - Fast to Firewall). Using a port range for Port Address Translation (PAT) is one such case. Another is a NAT rule where the translated destination port is 'Any' or a service group containing 'Any', as SecureXL cannot determine a specific port for the connection template. Standard Static NAT and Hide NAT behind the gateway are fully accelerable.

The correct command to allocate kernel memory for the debug buffer is fw ctl debug -buf . The other options use incorrect syntax. fw ctl kdebug is used to read the buffer, not set its size. fw ctl debug --buf is not a valid flag, and fw ctl debug -s is not used for setting the buffer size.