156-315.81資格試験、156-315.81試験感想

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156-315.81「Check Point Certified Security Expert R81」はCheckPointの一つ認証試験として、もしCheckPoint認証試験に合格してIT業界にとても人気があってので、ますます多くの人が156-315.81試験に申し込んで、156-315.81試験は簡単ではなくて、時間とエネルギーがかかって用意しなければなりません。

CheckPoint 156-315.81 Exam Syllabus Topics:

SectionObjectives
Threat Prevention and Inspection- Application Control and URL Filtering
  • 1. Application awareness
    • 2. URL categorization policies
      - IPS and Threat Prevention
      • 1. Signature-based detection
        • 2. Threat prevention profiles
          Advanced Network Security- NAT and Traffic Control
          • 1. NAT order of operations
            • 2. Static and dynamic NAT
              - Firewall Policy and Rulebase Optimization
              • 1. Rule matching order
                • 2. Implicit vs explicit rules
                  High Availability and Performance- ClusterXL
                  • 1. Load sharing vs High Availability modes
                    • 2. State synchronization
                      - Performance Optimization
                      • 1. Performance tuning techniques
                        • 2. Accelerated packet path
                          Security Architecture and Core Concepts- Check Point Security Gateway Architecture
                          • 1. Packet flow and inspection mechanisms
                            • 2. Kernel vs user space processing
                              - Security Management Infrastructure
                              • 1. Security Management Server components
                                • 2. Policy installation workflow
                                  VPN and Secure Connectivity- Remote Access VPN
                                  • 1. Authentication methods
                                    • 2. Mobile access configuration
                                      - IPSec VPN
                                      • 1. IKE Phase 1 and Phase 2 negotiation
                                        • 2. VPN communities

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                                          CheckPoint Check Point Certified Security Expert R81 認定 156-315.81 試験問題 (Q322-Q327):

                                          質問 # 322
                                          Rugged appliances are small appliances with ruggedized hardware and like Quantum Spark appliance they use which operating system?

                                          正解：A

                                          解説：
                                          Rugged appliances are small appliances with ruggedized hardware that are designed for harsh environments. Like Quantum Spark appliances, they use Gaia embedded as their operating system. Gaia embedded is a lightweight version of Gaia that supports a subset of features and commands. Reference: [Check Point R81 Gaia Embedded Administration Guide]


                                          質問 # 323
                                          Which Queue in the Priority Queue has the maximum priority?

                                          正解：A

                                          解説：
                                          The Priority Queue is a feature that allows the firewall to prioritize certain types of traffic over others, such as control and routing traffic, when the CPU load is high. The Priority Queue has four levels of priority: Control, Routing, High Priority and Heavy Data Queue1. The Control level has the highest priority and is reserved for firewall control traffic, such as policy installation and synchronization. The Routing level has the second highest priority and is used for routing protocols, such as OSPF and BGP. The High Priority level has the third highest priority and is used for user-defined traffic that needs to be prioritized, such as VoIP or video conferencing. The Heavy Data Queue level has the lowest priority and is used for bulk data transfer, such as FTP or HTTP2. Therefore, the correct answer is C.


                                          質問 # 324
                                          You are investigating issues with to gateway cluster members are not able to establish the first initial cluster synchronization. What service is used by the FWD daemon to do a Full Synchronization?

                                          正解：C


                                          質問 # 325
                                          A user complains that some Internet resources are not available. The Administrator is having issues seeing it packets are being dropped at the firewall (not seeing drops in logs). What is the solution to troubleshoot the issue?

                                          正解：D

                                          解説：
                                          The solution to troubleshoot the issue of some Internet resources being unavailable is to run fw ctl zdebug drop on the relevant gateway1. This command lists all dropped packets in real time and explains the reasons for the drop2. It is a powerful tool that can help diagnose connectivity problems and firewall policy issues3. To use this command, you need to access the gateway in expert mode and run fw ctl zdebug + drop2. You can also filter the output by using grep with an IP address or a keyword, for example: fw ctl zdebug + drop | grep 10.10.10.10 or fw ctl zdebug + drop | grep SYN3. This command is a wrapper for the full debugs, and it will run the debug commands for you and will allow you to run debug from one debug module only4. By default, it will use a small debug buffer but if you wish, you can provide the -buf option to use your own size4. To stop the command, press Ctrl+C and then run fw ctl debug 0 to reset the debug state3.
                                          Note: Running this command may affect the performance of the firewall, so use it with caution and only when necessary3. References: Solved: is it possible /supported to run fw ctl zdebug on ... - Check ..., How to use the fw ctl zdebug command to view drops on the Security Gateway, Troubleshooting dropped packets in Checkpoint using zdebug, "fw ctl zdebug" - Helpful Command Combinations - Check Point CheckMates


                                          質問 # 326
                                          What destination versions are supported for a Multi-Version Cluster Upgrade?

                                          正解：A

                                          解説：
                                          Explanation
                                          The correct answer is B. R80.10 and later.
                                          According to the Check Point documentation1, the Multi-Version Cluster Upgrade (MVC) is a new feature in R80.40 and higher that replaces the Connectivity Upgrade (CU) method. MVC allows you to upgrade a cluster to a newer version without a loss in connectivity and test the new version on some of the cluster members before you decide to upgrade the rest of the cluster members. The MVC feature supports the following destination versions2:
                                          R80.10
                                          R80.20
                                          R80.30
                                          R80.40
                                          R81
                                          R81.20
                                          The other options are incorrect because they are either not supported by MVC or they are older than the source version (R80.40).
                                          References:
                                          Multi-Version Cluster (MVC) replaces Connectivity Upgrade (CU) in R80.401 ClusterXL upgrade methods and paths2


                                          質問 # 327
                                          ......

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