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PCNSA · Question #233

What are three Palo Alto Networks best practices when implementing the DNS Security Service? (Choose three.)

The correct answer is A. Implement a threat intel program. B. Configure a URL Filtering profile. D. Rely on a DNS resolver. Three best practices for implementing Palo Alto Networks DNS Security Service include adopting a threat intelligence program, configuring a complementary URL Filtering profile, and ensuring proper reliance on a DNS resolver.

Submitted by marco_it· Apr 18, 2026Securing Traffic

Question

What are three Palo Alto Networks best practices when implementing the DNS Security Service? (Choose three.)

Options

  • AImplement a threat intel program.
  • BConfigure a URL Filtering profile.
  • CTrain your staff to be security aware.
  • DRely on a DNS resolver.
  • EPlan for mobile-employee risk

How the community answered

(36 responses)
  • A
    75% (27)
  • C
    8% (3)
  • E
    17% (6)

Why each option

Three best practices for implementing Palo Alto Networks DNS Security Service include adopting a threat intelligence program, configuring a complementary URL Filtering profile, and ensuring proper reliance on a DNS resolver.

AImplement a threat intel program.Correct

Implementing a threat intelligence program enhances the effectiveness of DNS Security, as the service heavily relies on continuously updated threat intelligence from Palo Alto Networks to identify malicious domains.

BConfigure a URL Filtering profile.Correct

Configuring a URL Filtering profile complements DNS Security by providing granular control over web access and identifying malicious URLs in HTTP/S traffic, working together to provide comprehensive web protection.

CTrain your staff to be security aware.

Training staff to be security aware is a general cybersecurity best practice for an organization, but it is not a direct technical implementation best practice for configuring the DNS Security Service itself.

DRely on a DNS resolver.Correct

DNS Security functions by inspecting DNS queries before they reach an upstream resolver; therefore, proper configuration and reliance on a robust DNS resolver are fundamental for the service to operate correctly.

EPlan for mobile-employee risk

Planning for mobile-employee risk is a broader security strategy involving solutions like GlobalProtect, not a specific implementation best practice for the firewall's DNS Security Service.

Concept tested: DNS Security Service best practices

Source: https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/dns-security/configure-dns-security

Topics

#DNS Security Service#Best Practices#Threat Intelligence#URL Filtering Integration

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