Which SP provides guidance specifically for the DNS deployment?

• A. 800-81 Secure DNS Deployment Guide
• B. 800-113 Guide to SSL VPN
• C. 800-53 Rev 4
• D. 800-56 Information Security Metrics

Answer: (A)

DNS deployment requires guidance that specifically addresses how to securely configure and operate DNS infrastructure. The right publication for this is the Secure DNS Deployment Guide, which focuses on planning, deploying, and running DNS services with security in mind—covering aspects like securing zone transfers, implementing DNSSEC, hardening resolvers, and establishing solid operational practices.

Other options don’t fit this focus: one publication is about SSL VPN guidance, another provides a general catalog of security controls, and the last discusses information security metrics. None of these target DNS deployment specifically.