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Multi Datacenter FederationhardMultiple ChoiceObjective-mapped

Consul 1.15 Multi Datacenter Federation Practice Question

When configuring an ACL policy for cross-datacenter access, what policy rule is necessary to read service information from a remote datacenter?

Answer choices

Why each option matters

Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.

Correct answer & explanation

node_prefix "" { policy = "read" }

You need 'service_prefix' or 'node_prefix' policies that explicitly allow reading in the target datacenter.

Answer analysis

Option-by-option breakdown

For each option: why learners choose it and why it is or isn't the right answer here.

  • service_prefix "*" { policy = "write" }

    Why it's wrong here

    Write access is not required for discovery.

  • agent_prefix "" { policy = "read" }

    Why it's wrong here

    Agent read is for local agent status.

  • acl_prefix "" { policy = "read" }

    Why it's wrong here

    This relates to ACL management, not service discovery.

  • node_prefix "" { policy = "read" }

    Why this is correct

    Reading node/service info requires read access to the namespace.

Visual reference

Source Router + ACL permit 10.0.0.0/8 deny any Server 10.0.0.5 ✓ 192.168.1.1 ✗ dropped ACLs evaluate top-down; first match wins — implicit deny all at end

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JA

Written and reviewed by Johnson Ajibi, MSc IT Security

Senior Network & Security Engineer · founder of Courseiva

Last reviewed August 2026 · checked against the official HashiCorp exam blueprint

This Consul 1.15 practice question is part of Courseiva's free HashiCorp certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the Consul 1.15 exam.