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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
Company C has recently launched an online commerce site for bicycles on AWS. They have a
"Product" DynamoDB table that stores details for each bicycle, such as, manufacturer, color, price, quantity and size to display in the online store. Due to customer demand, they want to include an image for each bicycle along with the existing details.
Which approach below provides the least impact to provisioned throughput on the "Product" table?
A. Serialize the image and store it in multiple DynamoDB tables
B. Create an "Images" DynamoDB table to store the Image with a foreign key constraint to the
"Product" table
C. Store the images in Amazon S3 and add an S3 URL pointer to the "Product" table item for each image
D. Add an image data type to the "Product" table to store the images in binary format
Answer: C
QUESTION NO: 4
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: 5
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
Salesforce PDI - 但是這並不代表不能獲得高分輕鬆通過考試。 大家都是一邊工作一邊準備考試,這樣很費心費力吧?為了避免你在準備考試時浪費太多的時間,Shobhadoshi為你提供了只需要經過很短時間的學習就可以通過考試的Scaled Agile SAFe-ASE考古題。 對於HP HP2-I80認證考試,你是怎麼想的呢?作為非常有人氣的Amazon認證考試之一,這個考試也是非常重要的。 Amazon AIF-C01-KR - 这是经过很多人证明过的事实。 所有購買Oracle 1Z0-1045-24題庫的客戶都將得到一年的免費升級服務,這讓您擁有充裕的時間來完成考試。
Updated: May 28, 2022
考試編碼:AWS-Developer
考試名稱:AWS Certified Developer - Associate
更新時間:2025-06-07
問題數量:67題
Amazon AWS-Developer 考試指南
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考試編碼:AWS-Developer
考試名稱:AWS Certified Developer - Associate
更新時間:2025-06-07
問題數量:67題
Amazon AWS-Developer 熱門考古題
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考試編碼:AWS-Developer
考試名稱:AWS Certified Developer - Associate
更新時間:2025-06-07
問題數量:67題
Amazon AWS-Developer 考試重點
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