The objective is to increase the file size limit for executables to 30 MB while minimizing the performance impact on scanning other file types. This requires granular control over the inspection policy. The most precise way to achieve this is by creating or updating a custom inspection profile and setting a specific file size limit for the executable file type only. This targeted approach ensures that other file types continue to use the existing, smaller size limit, thus satisfying the constraint of minimizing changes in scan time for them. The ATP Cloud free model supports a maximum file size of 30 MB, making this configuration valid.

A: This option is too general. Simply increasing the scan limit in a custom profile without specifying the file type would apply the new 30 MB limit to all files, failing the constraint.

B: This is incorrect because it modifies the default profile and increases the limit for all files, which violates the requirement to minimize the impact on other file types.

C: This is incorrect for the same reasons as option B. Modifying the default profile and applying a global size increase does not meet the specific constraints of the scenario.

1. Juniper Networks TechLibrary

Security Configuration Guide for Security Devices

"Understanding Advanced Anti-Malware Inspection Profiles": This document explains the use of inspection profiles. It states

"You can create custom profiles to specify different file size limits for different file types." This confirms that granular

per-file-type control is the intended method for such a requirement.

2. Juniper Networks TechLibrary

CLI Explorer

inspection-profile (Services Advanced Anti-Malware): The configuration hierarchy [edit services advanced-anti-malware policy inspection-profile ] includes the file-type-inspection file-size statement. This command explicitly allows setting a distinct file-size for a specific file type (e.g.

exe)

demonstrating the technical capability described in the correct answer.

3. Juniper Networks TechLibrary

Juniper Advanced Threat Prevention Cloud Administration Guide

"Licenses for Juniper ATP Cloud": This guide specifies the service levels. For the "Free" model

it states

"Maximum file size for inspection is 30 MB." This confirms that increasing the limit to 30 MB is within the technical capabilities of the license being used.