156-315.81 Exam Dumps - Checkpoint CCSE R81 Questions and Answers

AppWiki is the Check Point feature that enables application scanning and the detection. AppWiki is an easy to use tool that lets you search and filter Check Point’s Web 2.0 Applications Database to find out information about internet applications, including social network widgets; filter by a category, tag, or risk level; and search for a keyword or application1. AppWiki helps you to identify and control the applications on your network, and to apply granular policies based on the application type, risk, and characteristics1. AppWiki is integrated with the Check Point Application Control Software Blade, which provides the industry’s strongest application security and identity control to organizations of all sizes1.

References: 1: AppWiki | Check Point Software

 For packets that do not pass Firewall Kernel Inspection and are rejected by the rule definition, packets are dropped with logs and without sending a negative acknowledgment. Firewall Kernel Inspection is the process of applying security policies and rules to network traffic by the Firewall kernel module. If a packet does not match any rule or matches a rule with an action of Drop or Reject, the packet is dropped by the Firewall kernel module. The difference between Drop and Reject is that Drop silently discards the packet without informing the sender, while Reject discards the packet and sends a negative acknowledgment (such as an ICMP message) to the sender. However, both Drop and Reject actions generate logs that record the details of the dropped packets, such as source, destination, protocol, port, rule number, etc. The other options are either incorrect or describe different scenarios.

The formats in which Threat Emulation forensics reports can be viewed in are PDF, HTML, and XML. Threat Emulation is a feature that detects and prevents zero-day attacks by emulating files in a sandbox environment and analyzing their behavior. Threat Emulation generates forensics reports that provide detailed information about the emulated files, such as verdict, severity, activity summary, screenshots, network activity, registry activity, file activity, and process activity. These reports can be viewed in PDF, HTML, or XML formats from SmartConsole or SmartView.

According to the Check Point R81 training course, the Proxy ARP feature for Manual NAT in R81.20 requires the configuration of the local.arp file on the Security Gateway. This file contains the mapping of IP addresses to MAC addresses for NATed hosts. The other options are either incorrect or irrelevant. References: Certified Security Expert (CCSE) R81.20 Course Overview

 One of the requirements for Joey’s success in upgrading from R75.40 to R81 version of Security management using Advanced Upgrade with Database Migration method is that the size of the /var/log folder of the target machine must be at least 25% of the size of the /var/log directory on the source machine. Advanced Upgrade with Database Migration method is a procedure that allows administrators to upgrade their Security Management Server to a newer version by migrating their database from an older version to a new machine with a fresh installation of the newer version. One of the steps in this procedure is to copy the /var/log folder from the source machine to the target machine, which contains important log files and configuration files. To ensure that there is enough disk space on the target machine for this operation, it is required that the size of the /var/log folder on the target machine must be at least 25% of the size of the /var/log folder on the source machine. 

The command that lists all interfaces using Multi-Queue is cpmq get. Multi-Queue is a feature that allows network interfaces to use multiple transmit and receive queues, which improves the performance and scalability of the Security Gateway by distributing the network load among several CPU cores. Cpmq is a command that allows administrators to configure and manage Multi-Queue settings on network interfaces. Cpmq get lists all interfaces using Multi-Queue and shows their queue count and core distribution. 

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The Software Container is a logical component in the Software Blade Architecture. There are three types of Software Containers: Security Management, Security Gateway, and Endpoint Security. The container enables the server functionality, and defines its purpose – e.g, management or gateway. https://downloads.checkpoint.com/dc/download.htm?ID=11608

 What can cause Vanessa unnecessary problems, if she didn’t check all requirements for migration to R81, is missing an installed R77.20 Add-on on Security Management Server. R77.20 Add-on is a package that adds new features and enhancements to R77 Security Management Server, such as support for new appliances, Gaia OS features, VPN features, etc. One of the requirements for migrating to R81 from R77 Security Management Server is to have R77.20 Add-on installed on the server. If Vanessa did not check this requirement and tried to migrate without R77.20 Add-on, she would encounter errors and failures during the migration process. The other options are either not relevant or not problematic for migration to R81. 

The statement that only cluster members running on the same OS platform can be synchronized is false. Cluster members can be synchronized even if they run on different OS platforms, as long as they have the same Check Point version and hotfixes installed. The other statements are true. The state of connections using resources is maintained in a Security Server, so their connections cannot be synchronized. In the case of a failover, accounting information on the failed member may be lost despite a properly working synchronization. Client Authentication or Session Authentication connections through a cluster member will be lost if the cluster member fails. References: R81 ClusterXL Administration Guide, page 9-10; [R81 Security Gateway Architecture], page 23

SmartEvent Unit is not a blade option when configuring SmartEvent. SmartEvent is a unified security event management solution that provides visibility, analysis, and reporting of security events across multiple Check Point products. SmartEvent consists of three main components: SmartEvent Server, Correlation Unit, and Log Server. SmartEvent Server is responsible for storing and displaying security events in SmartConsole and SmartEventWeb. Correlation Unit is responsible for collecting and correlating logs from various sources and generating security events based on predefined or custom scenarios. Log Server is responsible for receiving and indexing logs from Security Gateways and other Check Point modules. SmartEvent Unit is not a valid component or blade of SmartEvent.

 If the first packet of a UDP session is rejected by a rule definition from within a security policy (not including the clean up rule), nothing is sent back through the kernel. This is because UDP is a connectionless protocol that does not require an acknowledgement from the receiver. Therefore, if a UDP packet is dropped by the Firewall, the sender will not receive any feedback or notification. References: UDP Protocol

 The “unknown” SIC status shown on SmartConsole means that there is no connection between the Security Gateway and Security Management Server. SIC stands for Secure Internal Communication, which is a mechanism that ensures secure communication between Check Point components using certificates and encryption. SIC status can be one of the following: Trust established, Trust expired, Uninitialized, or Unknown. Trust established means that SIC is working properly and the components can communicate securely. Trust expired means that the SIC certificate has expired and needs to be renewed. Uninitialized means that SIC has not been configured yet and needs to be initialized with an activation key. Unknown means that the Security Management Server cannot reach the Security Gateway or vice versa, and therefore cannot verify the SIC status. This could be due to network issues, firewall rules, routing problems, or other causes that prevent connectivity between the components. References: Check Point R81 Security Management Administration Guide, page 32-33

 The best method to upgrade a Security Management Server to R81.x when it is not connected to the Internet is either Advanced upgrade or CPUSE offline upgrade. Advanced upgrade is a manual procedure that involves backing up the current configuration, installing the new version from an ISO image, and restoring the configuration. CPUSE offline upgrade is an automated procedure that involves downloading the upgrade package from the Check Point User Center, transferring it to the Security Management Server, and installing it using CPUSE. SmartUpdate offline upgrade is not a valid option, as SmartUpdate is a tool for managing licenses and software packages on multiple gateways and servers1. References: 1: Check Point Software, Getting Started, Upgrading Security Management Servers.

The error “no proposal chosen” indicates that the VPN gateway did not find a matching proposal for the IKE Phase 1 negotiation. This phase is responsible for establishing a secure channel between the VPN peers, using a pre-shared secret or a certificate. The proposal consists of parameters such as encryption algorithm, hash algorithm, Diffie-Hellman group, and lifetime. If the VPN gateway does not receive a proposal that matches its own configuration, it will reject the connection attempt and log the error “no proposal chosen” 1.

To troubleshoot this issue, one should verify that the VPN peers have the same IKE Phase 1 settings, such as:

• The same pre-shared secret or certificate
• The same encryption algorithm (e.g., AES-256)
• The same hash algorithm (e.g., SHA-256)
• The same Diffie-Hellman group (e.g., Group 14)
• The same lifetime (e.g., 86400 seconds)

One can use the command vpn tu on the VPN gateway to view the current IKE Phase 1 settings and compare them with the other peer. Alternatively, one can use the SmartConsole to check the VPN community properties and the gateway object properties for the IKE Phase 1 settings 2.

References: 1: Troubleshooting the “no proposal chosen” error - Check Point Software 2: Support, Support Requests, Training … - Check Point Software