Reader small image

You're reading from  AWS Certified Database – Specialty (DBS-C01) Certification Guide

Product typeBook
Published inMay 2022
PublisherPackt
ISBN-139781803243108
Edition1st Edition
Right arrow
Author (1)
Kate Gawron
Kate Gawron
author image
Kate Gawron

Kate Gawron is a full-time senior database consultant and part-time future racing driver. She was a competitor in Formula Woman, and she aspires to become a professional Gran Turismo (GT) racing driver. Away from the racetrack, Kate has worked with Oracle databases for 18 years and AWS for five years. She holds four AWS certifications, including the AWS Certified Database – Specialty certification as well as two professional Oracle qualifications. Kate currently works as a senior database architect, where she works with customers to migrate and refactor their databases to work optimally within the AWS cloud.
Read more about Kate Gawron

Right arrow

Review

To check your knowledge from this chapter, here are five questions that you should now be able to answer. Remember the exam techniques from Chapter 1, AWS Certified Database – Specialty Exam Overview, and remove the clearly incorrect answers first to help you:

  1. You are working as a developer for a small company with a DynamoDB table. The company is complaining of poor performance after increasing the number of records in the table and they say they are seeing "throttling errors." What is the most cost-efficient option for them to consider?
    1. Enable TTL against a timestamp attribute.
    2. Implement DAX.
    3. Turn on Dynamo Streams.
    4. Turn on autoscaling.
  2. You are designing a new DynamoDB table and need to calculate how many Capacity Units (CUs) to provision. Each item is 3 KB in size and you expect to read a maximum of 100 items and write 10 per second. You will only be using eventually consistent reads and standard writes.
    1. 50 RCUs and 30 WCUs
    2. 100 RCUs and 10 WCUs
    3. 50 RCUs...
lock icon
The rest of the page is locked
Previous PageNext Page
You have been reading a chapter from
AWS Certified Database – Specialty (DBS-C01) Certification Guide
Published in: May 2022Publisher: PacktISBN-13: 9781803243108

Author (1)

author image
Kate Gawron

Kate Gawron is a full-time senior database consultant and part-time future racing driver. She was a competitor in Formula Woman, and she aspires to become a professional Gran Turismo (GT) racing driver. Away from the racetrack, Kate has worked with Oracle databases for 18 years and AWS for five years. She holds four AWS certifications, including the AWS Certified Database – Specialty certification as well as two professional Oracle qualifications. Kate currently works as a senior database architect, where she works with customers to migrate and refactor their databases to work optimally within the AWS cloud.
Read more about Kate Gawron