300-415 Question #198: Real Exam Question with Answer & Explanation

The correct answer is C: centralized control policy. A centralized control policy governs network topology and routing reachability across the Cisco SD-WAN fabric, allowing specific TLOC communication rules to be enforced.

Policies

Question

Which policy allows communication between TLOCs of data centers and spokes and blocks communication between spokes?

Options

Acentralized data policy
Blocalized control policy
Ccentralized control policy
Dlocalized data policy

Explanation

A centralized control policy governs network topology and routing reachability across the Cisco SD-WAN fabric, allowing specific TLOC communication rules to be enforced.

Common mistakes.

A. A centralized data policy primarily focuses on traffic engineering, QoS, and application-aware routing for data packets, not on defining the fundamental routing reachability between TLOCs.
B. A localized control policy is applied to a single WAN Edge router and affects routing decisions only for that specific device, unable to enforce communication rules across the entire fabric between different site types.
D. A localized data policy is applied to a single WAN Edge router and affects data plane forwarding decisions only for that device, unable to enforce communication rules across the entire fabric between different site types.

Concept tested. Cisco SD-WAN Centralized Control Policy Functionality

Reference. https://www.cisco.com/c/en/us/td/docs/routers/sdwan/configuration/sdwan-xe-gs-book/sdwan-policy-config.html#_Filter_Routes_Based_on_TLOC_Color

Topics

#SD-WAN Policies#Centralized Control Policy#Hub-and-Spoke Topology#Route Control

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