{"id":394,"date":"2022-02-05T18:29:31","date_gmt":"2022-02-05T18:29:31","guid":{"rendered":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/aws-devops-engineer-professional-dop-c01-question382\/"},"modified":"2022-02-05T18:29:31","modified_gmt":"2022-02-05T18:29:31","slug":"aws-devops-engineer-professional-dop-c01-question382","status":"publish","type":"post","link":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/aws-devops-engineer-professional-dop-c01-question382\/","title":{"rendered":"AWS DevOps Engineer Professional DOP-C01 &#8211; Question382"},"content":{"rendered":"<div class=\"question\">You are experiencing performance issues writing to a DynamoDB table. Your system tracks high scores for video games on a marketplace. Your most popular game experiences all of the performance issues.<br \/>\nWhat is the most likely problem?<br \/><strong><br \/>A.<\/strong> DynamoDB&#039;s vector clock is out of sync, because of the rapid growth in request for the most popular game.<br \/><strong>B.<\/strong> You selected the Game ID or equivalent identifier as the primary partition key for the table.<br \/><strong>C.<\/strong> Users of the most popular video game each perform more read and write requests than average.<br \/><strong>D.<\/strong> You did not provision enough read or write throughput to the table.<\/div>\n<p><\/p>\n<style> .hidden-div{ display:none } <\/style>\n<p>\t\t\t\t\t\t\t<button onclick=\"getElementById('hidden-div').style.display = 'block'\"> Show Answer <\/button> <button onclick=\"getElementById('hidden-div').style.display = 'none'\">Hide Answer<\/button><\/p>\n<div class=\"hidden-div\" id=\"hidden-div\"><span style=\"\"><\/p>\n<div class=\"answer\">Correct Answer: <strong>B<\/strong><\/div>\n<p><strong>Explanation:<\/strong> <\/p>\n<div class=\"explanation\">\nExplanation:<br \/>\nThe primary key selection dramatically affects performance consistency when reading or writing to DynamoDB. By selecting a key that is tied to the identity of the game, you forced DynamoDB to create a hotspot in the table partitions, and over-request against the primary key partition for the popular game.<br \/>\nWhen it stores data, DynamoDB divides a table&#8217;s items into multiple partitions, and distributes the data primarily based upon the partition key value. The provisioned throughput associated with a table is also divided evenly among the partitions, with no sharing of provisioned throughput across partitions.<\/div>\n<p><\/strong><\/span> <\/div>\n","protected":false},"excerpt":{"rendered":"<p>You are experiencing performance issues writing to a DynamoDB table. Your system tracks high scores for video games on a marketplace. Your most popular game experiences all of the performance issues. What is the most likely problem?A. DynamoDB&#039;s vector clock is out of sync, because of the rapid growth in request for the most popular [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[3,385],"class_list":["post-394","post","type-post","status-publish","format-standard","hentry","category-aws-devops-engineer-professional-dop-c01","tag-aws-devops-engineer-professional-dop-c01","tag-question-382"],"_links":{"self":[{"href":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/wp-json\/wp\/v2\/posts\/394","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/wp-json\/wp\/v2\/comments?post=394"}],"version-history":[{"count":0,"href":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/wp-json\/wp\/v2\/posts\/394\/revisions"}],"wp:attachment":[{"href":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/wp-json\/wp\/v2\/media?parent=394"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/wp-json\/wp\/v2\/categories?post=394"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exampracticetests.com\/aws\/DevOps_Engineer_Professional_DOP-C01\/wp-json\/wp\/v2\/tags?post=394"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}