Which issue poses a challenge for security architects who want end-to-end visibility of their networks?

End-to-end network visibility is often hindered by:

Siloed monitoring and logging systems

Vendor-specific platforms that don’t integrate

Inconsistent telemetry across domains (e.g., WAN, DC, Cloud)

Too many disparate solutions lead to data fragmentation, blind spots, and lack of unified analytics. This makes correlating threats and verifying policy enforcement complex. Overlapping controls (A) and manual processes (C) are operational concerns but don’t directly obstruct architectural visibility.

The CCDE blueprint emphasizes cross-domain visibility, consistent policy enforcement, and integration as central to a secure and scalable network design.

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