700-765 · Question #66
Which Cisco solution features recursive DNS capabilities?
The correct answer is C. Umbrella. Cisco Umbrella is a cloud-delivered security platform that functions as a recursive DNS resolver, enabling it to enforce security policies at the DNS layer before a connection is ever established.
Question
Which Cisco solution features recursive DNS capabilities?
Options
- ACisco Defense Orchstrator
- BIdentity Services Engine
- CUmbrella
- DCognitive Threat Analytics
How the community answered
(58 responses)- A5% (3)
- B3% (2)
- C90% (52)
- D2% (1)
Why each option
Cisco Umbrella is a cloud-delivered security platform that functions as a recursive DNS resolver, enabling it to enforce security policies at the DNS layer before a connection is ever established.
Cisco Defense Orchestrator is a cloud-based policy management platform for firewalls and does not provide DNS resolution services.
Identity Services Engine (ISE) handles network access control and identity-based policy, not recursive DNS.
Umbrella sits in the DNS resolution path by acting as a recursive DNS service for enrolled clients. When a user initiates a DNS query, Umbrella resolves it and simultaneously applies threat intelligence and policy enforcement, blocking malicious domains at the DNS layer without requiring an inline network device.
Cognitive Threat Analytics is a behavior-based threat detection tool that analyzes web traffic logs and does not perform DNS resolution.
Concept tested: Cisco Umbrella recursive DNS-layer security
Source: https://docs.umbrella.com/umbrella-user-guide/docs/dns-policies
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