Which is a feature mentioned in the DNS security module?

Question

Options

• ALayer-4 monitoring
• BUmbrella
• CReal-time sandboxing
• DData Loss Prevention

• B
  87% (20)
• C
  4% (1)
• D
  9% (2)

Explanation

Cisco Umbrella is a cloud-delivered DNS security service specifically designed to protect against threats at the DNS layer - making it the feature directly associated with DNS security modules, particularly in Cisco's security curriculum (such as CCNA Security or CyberOps). Options A (Layer-4 monitoring) and D (Data Loss Prevention) are features associated with different security domains - network/transport-layer inspection and data protection tools respectively - neither of which operates at the DNS level. Option C (Real-time sandboxing) is a threat analysis technique (used in tools like Cisco Threat Grid) but is not a DNS-specific security feature.

Memory tip: Think "Umbrella covers DNS" - just as an umbrella sits above you, Umbrella sits above your network traffic at the DNS layer, blocking malicious domains before a connection is even established.

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