1 Reply Latest reply on Feb 9, 2017 6:02 PM by Chrys C.

    Errors in AWS Certified Solutions Architect Official Study Guide

    Mike Rizzo

      HI

       

      I cannot find a way to report errors that I found in the AWS Certified Solutions Architect Official Study Guide, so am reporting them here.

       

      Basically the chapter 9 on DNS contains a number of confusing errors relating to the use of the term "alias" in relation to A records.

      In DNS, A stands for an "Address record", yet in a number of places the chapter text refers to A records as "aliases". This is incorrect.

      The correct way to represent an alias in DNS is using the CNAME (Canonical Name) record.

       

      See for example:

      - Page 231 - tip at end of page: "Use an alias record, not a CNAME, ..."

      - Exercise 9.3

       

       

      Other confusing text

      - Page 231 - tip at end of page: "Use an alias record, not a CNAME, for your hosted zone"

      This makes no sense! A hosted zone is not a host, so why would we by trying to create a record for it?

      - Page 232 - first tip: "Do not use A records for subdomains (for example www.domain.com)..."

      I believe this should say "Do not use A records for hosts (for example www.domain.com)..."

       

      Mike