156-315.81 Exam Dumps - Check Point Certified Security Expert R81.20

 A best practice before starting to troubleshoot using the fw monitor tool is to disable SecureXL. SecureXL is a performance acceleration solution that optimizes the packet flow through the Security Gateway. However, SecureXL can also bypass some inspection points and cause some packets to be invisible to fw monitor. Therefore, disabling SecureXL can ensure that fw monitor captures all the relevant packets for troubleshooting purposes. References: Check Point Security Expert R81 Course, fw monitor, SecureXL

SecureXL is a technology that improves the performance of Security Gateway by offloading the processing of some packets from the Firewall kernel to the SecureXL device driver1. SecureXL can handle packets in three different paths, depending on the type and state of the packet2:

• Firewall Path: This is the slowest path, where packets are processed by the Firewall kernel and all the inspection blades. This path is used for packets that require full inspection, such as the first packet of a connection, packets that match a rule with a UTM blade, or packets that are not eligible for acceleration.
• Accelerated Path: This is the fastest path, where packets are processed by the SecureXL device driver and bypass the Firewall kernel. This path is used for packets that belong to an established connection that is marked for acceleration, and do not require any further inspection by the Firewall or other blades.
• Medium Path: This is a hybrid path, where packets are processed by both the SecureXL device driver and the Firewall kernel, but skip some inspection steps. This path is used for packets that belong to an established connection that is not marked for acceleration, but do not require full inspection by all the blades.

The other options are not correct because:

• A. Initial Path; Medium Path; Accelerated Path: There is no such thing as Initial Path in SecureXL terminology. The initial packet of a connection is always handled by the Firewall Path.
• B. Layer Path; Blade Path; Rule Path: These are not paths of traffic flow, but components of the unified policy in R80 and above versions. The Layer Path refers to the order of layers in the policy, the Blade Path refers to the order of blades within a layer, and the Rule Path refers to the order of rules within a blade3.
• C. Firewall Path; Accept Path; Drop Path: These are not paths of traffic flow, but possible actions that the Firewall can take on a packet. The Firewall Path is one of the paths of traffic flow, but the Accept Path and Drop Path are not. The Accept Path means that the packet is allowed to pass through the Firewall, and the Drop Path means that the packet is blocked by the Firewall4.

References: Part 3 - SecureXL, What is CoreXL & SecureXL, SecureXL Fast Accelerator (fw fast_accel) for R80.20 and above, QUANTUM 7000 SECURITY GATEWAY

SecureXL is a performance-enhancing technology used in Check Point firewalls. It improves the throughput of both non-encrypted firewall traffic and encrypted VPN traffic. The statement in option C is true because SecureXL does improve both types of traffic by offloading processing to dedicated hardware acceleration, optimizing firewall and VPN operations.

Option C correctly states that SecureXL improves this traffic, making it the verified answer.

References: Check Point Certified Security Expert (CCSE) R81 documentation and learning resources.

 The order of NAT priorities is determined by the type of NAT rule that is applied to the traffic. There are three types of NAT rules in Check Point: static NAT, IP pool NAT, and hide NAT12.

• Static NAT: This type of NAT rule maps a single IP address to another single IP address. It is usually used to allow external hosts to access internal servers or devices. Static NAT has the highest priority among the NAT rules, and it is applied before the security policy is enforced12.
• IP pool NAT: This type of NAT rule maps a range of IP addresses to another range of IP addresses. It is usually used to balance the load among multiple servers or devices. IP pool NAT has the second highest priority among the NAT rules, and it is applied after the security policy is enforced12.
• Hide NAT: This type of NAT rule hides a group of IP addresses behind a single IP address or an interface. It is usually used to allow internal hosts to access external resources. Hide NAT has the lowest priority among the NAT rules, and it is applied after the security policy is enforced12.

Therefore, the order of NAT priorities is: static NAT, IP pool NAT, hide NAT.

References: 1: Check Point R81 Security Administration Guide - Check Point Software, page 209 2: Check Point R81 Security Engineering Guide - Check Point Software, page 163

Check Point SandBlast Zero-Day Protection offers flexibility in implementation to meet individual business needs. One of the deployment options for Check Point SandBlast Zero-Day Protection is:

Smart Cloud Services (Option A): Smart Cloud Services allow organizations to leverage cloud-based threat intelligence and protection services provided by Check Point.

The other options, Load Sharing Mode Services (Option B), Threat Agent Solution (Option C), and Public Cloud Services (Option D), may also be components of a security strategy, but they are not specific deployment options for Check Point SandBlast Zero-Day Protection.

References: Check Point Certified Security Expert (CCSE) R81 training materials and documentation.

CoreXL is a performance-enhancing technology that enables the processing CPU cores to concurrently perform multiple tasks on Security Gateways with multiple CPU cores. CoreXL replicates the Firewall kernel multiple times, creating multiple Firewall instances that run on different CPU cores. These Firewall instances handle traffic concurrently, and each Firewall instance is a complete and independent Firewall inspection kernel. To show the current connections distributed by CoreXL FW instances, you can use the command fw ctl multik stat on the Security Gateway. This command will display information such as the number of connections, packets, bytes, drops, and errors handled by each CoreXL FW instance, as well as the CPU utilization and affinity of each instance. The other options are not correct because:

• B. fw ctl affinity -l: This command will show the CPU affinity of all processes and IRQs on the Security Gateway. It will not show the current connections distributed by CoreXL FW instances.
• C. fw ctl instances -v: This command will show the details of all CoreXL FW instances on the Security Gateway, such as their ID, type, state, priority, and interfaces. It will not show the current connections distributed by CoreXL FW instances.
• D. fw ctl iflist: This command will show the list of all interfaces on the Security Gateway, along with their names

References: Part 3 - SecureXL, What is CoreXL & SecureXL, SecureXL Fast Accelerator (fw fast_accel) for R80.20 and above

The command cphaprob all show stat is not related to redundancy and functions. This command does not exist in ClusterXL or VRRP. The other commands are valid commands for checking the status of cluster members, interfaces, and synchronization. ClusterXL and VRRP are both high availability solutions that provide redundancy and load balancing for Check Point gateways. References: Check Point Security Expert R81 Course, ClusterXL Administration Guide, VRRP Administration Guide

NAT (Network Address Translation) is one item that will not be configured on the R81 Security Management Server when setting up an externally managed log server. NAT is a technique that allows devices with private IP addresses to communicate with devices with public IP addresses by translating the private addresses to public ones. NAT is not relevant for configuring an externally managed log server, which requires only the IP address, SIC (Secure Internal Communication), and FQDN (Fully Qualified Domain Name) of the log server. References: Check Point Security Expert R81 Course, Logging and Monitoring Administration Guide