300-440 — Frequently Asked Questions

A cloud proxy handles traffic interception and security policies but does not intelligently route users to the nearest geographic PoP for load distribution.

It minimizes latency by directing users to the closest available point of presence and ensures high availability by distributing load across global resources.

MPLS provides private routing but not inherent encryption. While IPsec can be added, Option C's explicit 'end-to-end encryption' on a dedicated line is a clearer fit for strict NIST mandates requiring guaranteed data protection.

No, GRE (Generic Routing Encapsulation) does not provide encryption. It only encapsulates packets. You must use IPsec or similar protocols to add encryption if using GRE.

VPNs add encryption/decryption overhead and route through public internet peering points, increasing latency compared to the direct, private path of Azure Private Link.

No, only for supported Azure PaaS services and partner SaaS applications that have been integrated with the Private Link service. Not all third-party SaaS apps support it.

MPLS requires manual provisioning for each circuit, making it rigid and slow to scale compared to the automated, elastic nature of SD-WAN cloud gateways.

Transit VPC connects to a single provider's hub, while SD-WAN Cloud Gateway integrates with the SD-WAN fabric for centralized policy, monitoring, and multi-cloud redundancy.

Validator redundancy ensures that if the primary license validation server fails, the secondary server can continue to validate licenses, preventing potential service interruptions or policy denials.

No, a single control connection represents a single point of failure. High availability requires multiple paths or redundant components to ensure continuous operation during failures.

UUIDs provide the unique identifiers required for authentication and resource tracking in the Equinix portal and vManage, which are prerequisites for creating any network segment.

Attaching the Virtual Edge prematurely can lead to configuration errors because the device template may not have valid network segment references to associate with the edge device.

Because the DoS attacks originate from within the service VPN (internal sources), the policy must inspect traffic coming from the service interface.

Echo refers to the Request packet initiating the ping; Echo-reply is the Response. Blocking Echo stops the flood at the source.