156-315.81.20 Practice Questions

Question 1

You are upgrading a Security Gateway from R80.40 to R81.20 using the CPUSE 'In-Place Upgrade' method. After the upgrade, you notice the gateway is not communicating with the Management Server. Which file should you check first to identify potential SIC-related errors during the boot process?

Accepted Answer

$FWDIR/log/cpd.elg. Checking the cpd.elg file is critical because it captures the Check Point Daemon logs, which document the secure communication initialization process. During an upgrade, SIC certificates or trust relationships can occasionally fail to re-initialize due to connectivity issues or synchronization mismatches. By examining these logs, an administrator can quickly pinpoint whether the issue stems from a certificate expiration, an incorrect IP address resolution, or a failure in the initial handshake process between the gateway and management.

Answer

$FWDIR/log/fw.log

Answer

/var/log/messages

Answer

$FWDIR/log/fwm.log

Question 2

Which THREE factors can cause a ClusterXL member to transition to a 'Down' state?

Accepted Answer

The Security Gateway process (fwd) is not responding on the local member.. A member enters the 'Down' state when critical processes stop responding or connectivity is lost. Monitoring these factors is essential for HA stability. Failures in critical processes like fwd or cphad, or persistent loss of connectivity on heart-beat interfaces, directly trigger state transitions. Administrators must monitor these components carefully, as a 'Down' state triggers an automatic failover to the secondary gateway, affecting production traffic patterns during the transition period.

Answer

A temporary spike in CPU utilization exceeding 90% for two seconds.

Answer

An administrator manually initiates a policy install on a peer member.

Question 3

Which TWO of the following are benefits of using the Threat Prevention 'Recommended' profile over a custom profile?

Accepted Answer

It automatically includes the latest security best practices from Check Point.. The 'Recommended' profile is a pre-configured best-practice policy designed by Check Point security researchers. It automatically incorporates the most effective settings, balance of blades, and confidence levels. Using this profile ensures that the security posture is aligned with industry-standard best practices, reducing administrative overhead and preventing gaps in protection that often occur due to misconfigurations or the omission of critical protections during custom policy creation.

Answer

It disables all non-essential features to maximize network throughput.

Answer

It guarantees zero false positives in every network environment.

Answer

It forces all traffic to be inspected by every blade regardless of protocol.

Question 4

A Check Point administrator is configuring a Site-to-Site VPN between a Security Gateway and a third-party device using IKEv2. The third-party device requires a specific non-standard IKEv2 proposal. Where should the administrator define this custom proposal in SmartConsole?

Accepted Answer

Under the Gateway object > IPsec VPN > Advanced > IKEv2 Proposals.. Custom IKEv2 proposals are defined within the VPN Advanced settings of the Gateway object. While standard proposals are pre-defined, interoperability with third-party vendors often necessitates manual negotiation settings. Defining these correctly is critical for successful Phase 1 establishment, as mismatches in encryption, integrity, or Diffie-Hellman groups will result in IKE negotiation failures, preventing the tunnel from initiating securely between the disparate security appliances.

Answer

In the Global Properties under VPN Advanced settings.

Answer

Within the VPN Community object properties.

Answer

In the Policy tab under the VPN Rule properties.

Question 5

Which command is used to manually verify the synchronization status of the kernel tables between ClusterXL members?

Accepted Answer

cphaprob syncstat. The 'cphaprob' command is the primary utility for troubleshooting and verifying ClusterXL status. Specifically, 'cphaprob syncstat' provides detailed information regarding the synchronization of kernel tables. Monitoring this output is critical for identifying synchronization latency, missed updates, or connection table mismatches that could lead to dropped packets or session resets after a failover event, ensuring that both members maintain consistent state information.

Answer

cphaprob stat

Answer

fw ctl pstat

Answer

cphaprob list

Question 6

Refer to the exhibit. What is the impact of having templates disabled on this gateway?

Accepted Answer

The firewall will process all packets in the connection. Templates are the core mechanism for SecureXL acceleration. When disabled, the gateway cannot create the fastpath entries needed for sustained connections. Consequently, every packet must be processed by the Firewall kernel, leading to significantly higher CPU consumption and lower throughput. This is a critical configuration issue because it renders the acceleration layer ineffective, forcing the system to perform full inspection on every packet, even for established sessions.

Answer

Only the first packet of each connection is processed by the firewall

Answer

The gateway will automatically enable templates after 60 seconds

Answer

This configuration is required for HTTPS Inspection

Question 7

An administrator is troubleshooting an Identity Awareness deployment where AD Query fails to resolve user identities for workstations located in a newly added branch office subnet. The Security Gateway can successfully ping the Domain Controllers in the branch office. What is the most likely cause of this communication failure?

Accepted Answer

Necessary ports such as RPC (135) and SMB (445) are blocked between the Security Gateway and the Domain Controllers.. AD Query relies on specific remote procedure call mechanisms and Windows Management Instrumentation protocols to read Security Event logs from Domain Controllers. If required ports like RPC Endpoint Mapper (135), SMB (445), or dynamic RPC ports are blocked by intermediate firewalls or host firewalls, the gateway cannot poll logs, resulting in complete identity resolution failure.

Answer

The Security Gateway lacks the necessary routing table entries to reach the branch office local subnet.

Answer

The branch office workstations have not installed the Check Point Identity Agent software.

Answer

The Captive Portal Web API service on the Security Gateway has been stopped by the administrator.

Question 8

Refer to the exhibit. What is the most immediate risk to this cluster configuration?

Accepted Answer

Existing connections will not survive a failover event.. The synchronization interface (eth1) is in a 'Down' state while the cluster is in an active/standby configuration. This means the active member cannot replicate state information to the standby member. If the active member fails, all current connections will be dropped because the standby member has no knowledge of existing sessions. This risk makes the cluster functionally equivalent to a simple failover pair without state persistence.

Answer

The firewall will stop passing traffic on the External interface.

Answer

The standby member will attempt to go Active, resulting in IP conflicts.

Answer

The cluster will automatically disable the External interface to prevent data loss.

Question 9

An administrator needs to implement Identity Awareness in a large environment with multiple Active Directory domains. Which method ensures the most efficient identity retrieval without requiring client-side agent installations on every workstation?

Accepted Answer

Active Directory Query (AD Query). Active Directory Query (AD Query) is the optimal choice here as it leverages WMI/RPC to monitor domain controller security logs for Kerberos/NTLM authentication events. This agentless approach provides real-time identity mapping across complex domain topologies without the administrative overhead of deploying and maintaining Identity Agents on thousands of endpoints, ensuring seamless scalability and minimal impact on user systems.

Answer

Identity Agent

Answer

Browser-Based Authentication

Answer

Remote Access VPN

Question 10

An administrator observes that the 'fw multik' process is consuming significantly more CPU than other processes. What is the most likely cause, and which feature configuration should be checked?

Accepted Answer

Check CoreXL instance count and interface affinity. When the 'fw multik' process consumes excessive CPU, it often indicates an imbalance in CoreXL instance distribution. This occurs when traffic is pinned to a single core or when high-volume traffic matches a rule that cannot be distributed effectively. Tuning core affinity and ensuring that the traffic is evenly distributed across all available CoreXL instances is essential to restore balanced processing and prevent specific core exhaustion.

Answer

Check SecureXL global status

Answer

Increase the amount of RAM on the gateway

Answer

Disable the Application Control blade

Question 11

When configuring CoreXL in a virtualized environment, what is a primary consideration for optimal performance?

Accepted Answer

Ensure the VM has dedicated physical CPU cores. In virtualized environments, CPU pinning and host-level resource allocation are critical. If the virtual gateway does not have dedicated access to the underlying physical cores, performance will fluctuate due to resource contention with other VMs. Proper configuration ensures the firewall kernel instances get the CPU cycles they need without interference, which is essential for maintaining the high-throughput, low-latency requirements of a security gateway.

Answer

Enable hyper-threading on the host

Answer

Increase the virtual disk speed

Answer

Use the default NIC drivers provided by the hypervisor

Question 12

An administrator wants to verify if SecureXL is handling the packet processing for a specific interface. Which command is best suited for this?

Accepted Answer

fwaccel stats -p. The 'fwaccel stats -p' command provides detailed information about packet processing per interface, specifically showing accelerated versus non-accelerated traffic. This visibility is vital for verifying that the intended interfaces are benefiting from acceleration. If an interface shows zero acceleration, the administrator can investigate why, ensuring that the critical traffic paths are correctly optimized to maintain high gateway performance and capacity.

Answer

fw ctl get int fwha_stats

Answer

top

Answer

cpstat fw -f policy

Question 13

Refer to the exhibit. An administrator is troubleshooting a file download issue. The CLI output confirms the file is blocked by Threat Emulation. What is the next logical step to investigate why this specific file was classified as malicious?

Accepted Answer

Examine the 'Threat Prevention' logs in the SmartConsole to view the Emulation report.. The CLI output confirms the block, but it lacks the forensic details found in the SmartConsole. To understand the classification, the administrator must examine the Threat Prevention logs in the Logs & Monitor tab. These logs provide the detailed emulation report, including the specific indicators of compromise (IoC) and the behavior patterns triggered during the sandbox analysis, which is essential for differentiating between true positives and potential false positives.

Answer

Run 'cpview' on the gateway to check the Threat Emulation queue depth.

Answer

Restart the Threat Emulation process using 'cpstop' and 'cpstart'.

Answer

Check the 'IPS' blade logs to see if the file triggered any signatures.

Question 14

What is the primary benefit of using CPUSE for gateway upgrades in a production environment?

Accepted Answer

It automates the upgrade process and reduces manual effort.. CPUSE (Check Point Upgrade Service Engine) provides a unified and automated framework for managing hotfixes, jumbo hotfixes, and major version upgrades. Its importance lies in reducing manual intervention, which significantly lowers the risk of human error. By automating the validation of prerequisites and the installation process, it ensures that gateways are updated consistently across the organization, which is a fundamental requirement for maintaining a robust and compliant security posture.

Answer

It allows the gateway to be managed by a third-party tool.

Answer

It automatically converts physical gateways to virtual ones.

Answer

It bypasses the need for Security Management Server approval.

Question 15

Refer to the exhibit. Why are both members showing as 'Active' in this Load Sharing configuration?

Accepted Answer

Load Sharing Multicast mode allows all members to process traffic concurrently.. In Load Sharing Multicast mode, both members participate in traffic processing simultaneously. The cluster uses a multicast MAC address, and traffic is distributed across all members. The 'Active' status for both nodes is expected, as they are both actively forwarding packets and sharing the load, which increases total throughput capacity for the cluster compared to a standard High Availability setup.

Answer

The cluster is misconfigured and will soon fail to a single active node.

Answer

The synchronization link is down, causing both to assume the Active role.

Answer

One member is in standby, but the status is cached incorrectly.

Check Point Certified Security Expert 156-315.81.20 practice test

Three ways to study

Study 156-315.81.20 by domain

Study 156-315.81.20 by topic

Gateway Deployment and Upgrades practice questions

ClusterXL and VRRP High Availability practice questions

Performance Tuning (SecureXL/CoreXL) practice questions

Threat Prevention and SandBlast practice questions

Advanced VPN Design practice questions

Identity Awareness practice questions

156-315.81.20 fundamentals practice questions

156-315.81.20 scenario practice questions

156-315.81.20 troubleshooting practice questions

Check Point Certified Security Expert practice questions