Checkpoint Updated 156-315.81 Exam Questions and Answers by aahil

 A pre-shared secret is a secret key that is shared between the two VPN peers before establishing a secure connection. It is used to authenticate the VPN peers and encrypt the VPN traffic. A pre-shared secret is required for a site-to-site VPN tunnel that does not use certificates, because certificates are another way of authenticating the VPN peers using public key cryptography. Without certificates, the VPN peers need to have a common secret key that only they know. References: Check Point R81 VPN Administration Guide, page 13

 In Advanced Permanent Tunnel Configuration, the life_sign_timeout parameter sets the amount of time the tunnel test runs without a response before the peer host is declared ‘down’. The life_sign_polling_interval parameter sets the interval between each tunnel test packet sent to the peer host.

The correct answer is A. SecurelD.

SecurelD is an authentication method that uses a token-based system to generate one-time passwords (OTPs) for users. Users need to have a physical or software token that displays a code that changes periodically. The code is used along with a personal identification number (PIN) to authenticate the user.

DynamiclD is another authentication method that uses OTPs, but it does not require a token. Instead, it sends the OTP to the user’s email or phone number.

Radius and TACACS are protocols that allow remote authentication of users through a centralized server. They do not use tokens, but they can support different types of authentication methods, such as passwords, certificates, or OTPs.

References:

• Certified Security Expert (CCSE) R81.20 Course Overview1
• What Is Token-Based Authentication? | Okta2

The Check Point software blade that provides protection from zero-day and undiscovered threats is Threat Emulation. Threat Emulation is a sandboxing technology that inspects files for malicious behavior in a virtual environment before they reach the end user. Threat Emulation can detect and block malware that tries to evade traditional signature-based solutions by using unknown or obfuscated techniques. Threat Emulation can also generate forensic reports and provide actionable intelligence on the malware origin and behavior.