156-315.81 Premium Exam Questions

The correct command to verify the CPUSE (Check Point Update Service Engine) version is:

Option B is incorrect because it uses the "[Expert@HostName:0]#" prompt, which is typically used for expert mode commands, but the CPUSE version can be checked using the "show installer status build" command in standard mode.

Option C is incorrect because it uses the "[Expert@HostName:0]#" prompt, and while it includes the "build" parameter, it's not the standard command to check the CPUSE version.

Option D is incorrect because it uses the "HostName:0>" prompt, but it lacks the "show" command and uses "build" instead of "status build."

References: Check Point Certified Security Expert R81 documentation

Dynamic Dispatch is a feature that enhances CoreXL performance by dynamically assigning new connections to CoreXL FW instances based on their CPU utilization1. To enable Dynamic Dispatch on Security Gateway without enabling Firewall Priority Queues (FPQ), you need to run the command fw ctl multik set_mode 4 in Expert mode and reboot2. This command will set the CoreXL mode to Dynamic Dispatcher without FPQ. The other options are not correct because:

• A. fw ctl Dyn_Dispatch on: This command does not exist and will return an error message.
• B. fw ctl Dyn_Dispatch enable: This command does not exist and will return an error message.
• D. fw ctl multik set_mode 1: This command will set the CoreXL mode to Static Dispatcher without FPQ, which is the default mode2. This mode will use a static hash function to assign new connections to CoreXL FW instances based on their IP addresses and protocol.

References: CoreXL Dynamic Dispatcher, To fully enable Dynamic Dispatcher on a Security Gateway, Running Dynamic Dispatch / Dynamic Split / Dynamic Balancing on VSEC/IaaS in Vmware, Dynamic Balancing for CoreXL

Hybrid Emulation Mode is a mode of operation that allows load sharing of emulation between an on premise appliance and the cloud. Emulation is a process that analyzes files for malicious behavior by running them in a virtual sandbox. Hybrid Emulation Mode enables you to optimize the performance and scalability of your Threat Emulation solution by distributing the emulation workload between your local SandBlast appliance and the Check Point cloud service. References: Check Point Security Expert R81 Course, Threat Emulation Administration Guide

 DES (Data Encryption Standard) is a symmetric block cipher that uses a 56-bit key to encrypt and decrypt 64-bit blocks of data. It was developed by IBM in 1975 and adopted by the US government as a standard for encryption. However, DES has been proven to be insecure and vulnerable to various attacks, such as brute force, differential cryptanalysis, and linear cryptanalysis. A brute force attack can break DES in a matter of hours using modern hardware. Differential cryptanalysis can reduce the number of keys to be searched by a factor of four, and linear cryptanalysis can reduce it by a factor of two. Therefore, DES is the least secure encryption algorithm among the options given.

References: Types of Encryption, Secure Organization’s Data With These Encryption Algorithms, Comparative study of symmetric cryptographic algorithms