300-320 Question #178: Real Exam Question with Answer & Explanation

The correct answer is A: efficient ACLs. A structured, hierarchical addressing scheme directly enables more efficient ACLs and simplifies troubleshooting by making address ranges predictable and summarizable.

Question

Which two benefits are achieved if a network is designed properly with a structured addressing scheme? (Choose two.)

Options

Aefficient ACLs
Bimproved redundancy
Chardened security
Deasier troubleshooting
Eadded resiliency

Explanation

A structured, hierarchical addressing scheme directly enables more efficient ACLs and simplifies troubleshooting by making address ranges predictable and summarizable.

Common mistakes.

B. Redundancy is a function of physical topology design and routing protocol configuration, not of the IP addressing scheme itself.
C. Security hardening comes from implementing firewalls, ACLs, and security policies; a structured address plan supports ACL efficiency but does not independently harden security.
E. Resiliency depends on redundant links, devices, and failover mechanisms in the network design, not on how IP addresses are structured.

Concept tested. Benefits of hierarchical structured IP addressing

Reference. https://www.cisco.com/c/en/us/td/docs/solutions/Enterprise/Network_Virtualization/PathSol/Network_Addr.html

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