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QUESTION NO: 1
A Developer is working on an application that tracks hundreds of millions of product reviews in an Amazon DynamoDB table. The records include the data elements shown in the table:
Which field, when used as the partition key, would result in the MOST consistent performance using
DynamoDB?
A. starRating
B. reviewID
C. comment
D. productID
Answer: D
Explanation
Refer AWS documentation - DynamoDB Design partition key
The partition key portion of a table s primary key determines the logical partitions in which a table's data is stored. This in turn affects the underlying physical partitions. Provisioned I/O capacity for the table is divided evenly among these physical partitions. Therefore a partition key design that doesn't distribute I/O requests evenly can create "hot" partitions that result in throttling and use your provisioned I/O capacity inefficiently.
The optimal usage of a table's provisioned throughput depends not only on the workload patterns of individual items, but also on the partition-key design. This doesn't mean that you must access all partition key values to achieve an efficient throughput level, or even that the percentage of accessed partition key values must be high. It does mean that the more distinct partition key values that your workload accesses, the more those requests will be spread across the partitioned space. In general, you will use your provisioned throughput more efficiently as the ratio of partition key values accessed to the total number of partition key values increases.
QUESTION NO: 2
A Developer needs to deploy an application running on AWS Fargate using Amazon ECS. The application has environment variables that must be passed to a container tor the application to initialize How should the environment variables be passed to the container?
A. Define in array that includes the environment variables under the entryPoint parameter within the service definition
B. Define an array that includes the environment variables under the environment parameter within the task definition
C. Define an array that includes the environment variables under the environment parameter within the service definition
D. Define an array that includes the environment variables under the entrypoint parameter within the task definition
Answer: B
QUESTION NO: 3
EC2 instances are launched from Amazon Machine images (AMIs). A given public AMI can:
A. only be used to launch EC2 instances in the same country as the AMI is stored.
B. only be used to launch EC2 instances in the same AWS availability zone as the AMI is stored
C. only be used to launch EC2 instances in the same AWS region as the AMI is stored.
D. be used to launch EC2 Instances in any AWS region.
Answer: C
QUESTION NO: 4
In a move toward using microservices, a company's Management team has asked all
Development teams to build their services so that API requests depend only on that service's data store. One team is building a Payments service which has its own database; the service needs data that originates in the Accounts database.
Both are using Amazon DynamoDB.
What approach will result in the simplest, decoupled, and reliable method to get near-real time updates from the Accounts database?
A. Use Amazon ElastiCache in Payments, with the cache updated by triggers in the Accounts database.
B. Use Amazon DynamoDB Streams to deliver all changes from the Accounts database to the
Payments database.
C. Use Amazon Kinesis Data Firehouse to deliver all changes from the Accounts database to the
Payments database.
D. Use Amazon Glue to perform frequent ETL updates from the Accounts database to the Payments database.
Answer: B
QUESTION NO: 5
A Developer is writing a mobile application that allows users to view images from an S3 bucket. The users must be able to log in with their Amazon login, as well as Facebook and/or Google accounts.
How can the Developer provide this authentication functionality?
A. Use Amazon Cognito with web identity federation.
B. Use AWS IAM Access/Secret keys in the application code to allow Get* on the S3 bucket.
C. Use Amazon Cognito with SAML-based identity federation.
D. Use AWS STS AssumeRole in the application code and assume a role with Get* permissions on the
S3 bucket.
Answer: A
Microsoft AZ-800J - そうでない場合、今回使用してからあなたがShobhadoshiを必要な選択肢として使用できるようになります。 ほんとんどお客様は我々ShobhadoshiのAmazon PMI DASM-JPN問題集を使用してから試験にうまく合格しましたのは弊社の試験資料の有効性と信頼性を説明できます。 Shobhadoshiは多くの受験生を助けて彼らにAmazonのHP HP2-I81試験に合格させることができるのは我々専門的なチームがAmazonのHP HP2-I81試験を研究して解答を詳しく分析しますから。 Huawei H19-490_V1.0問題集のカーバー率が高いので、勉強した問題は試験に出ることが多いです。 AmazonのMicrosoft AZ-204J試験のソフトは問題数が豊富であなたに大量の練習で能力を高めさせます。
Updated: May 28, 2022
試験コード:AWS-Developer
試験名称:AWS Certified Developer - Associate
最近更新時間:2025-06-07
問題と解答:全 67 問
Amazon AWS-Developer 試験感想
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試験コード:AWS-Developer
試験名称:AWS Certified Developer - Associate
最近更新時間:2025-06-07
問題と解答:全 67 問
Amazon AWS-Developer 受験トレーリング
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試験コード:AWS-Developer
試験名称:AWS Certified Developer - Associate
最近更新時間:2025-06-07
問題と解答:全 67 問
Amazon AWS-Developer 一発合格
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