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DVA-C01新版題庫上線 & DVA-C01熱門考題 - Amazon DVA-C01學習筆記 - Royalholidayclubbed
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Royalholidayclubbed為Amazon DVA-C01新版題庫上線 認證考試準備的培訓包括Amazon DVA-C01新版題庫上線認證考試的模擬測試題和當前的考試真題。在互聯網上你也可以看到幾個也提供相關的培訓的網站，但是你比較之後，你就會發現Royalholidayclubbed的關於Amazon DVA-C01新版題庫上線 認證考試的培訓比較有針對性，不僅品質是最高的，而且內容是最全面的。 Royalholidayclubbed的產品不僅幫助客戶100%通過第一次參加的Amazon DVA-C01新版題庫上線 認證考試，而且還可以為客戶提供一年的免費線上更新服務，第一時間將最新的資料推送給客戶，讓客戶瞭解到最新的考試資訊。所以Royalholidayclubbed不僅是個產品品質很好的網站，還是個售後服務很好的網站。 如果你選擇了Royalholidayclubbed的產品，你就為Amazon DVA-C01新版題庫上線 認證考試做好了充分準備，成功通過考試就是很輕鬆的。
Amazon AWS Certified Associate DVA-C01 这是可以保证你一次就成功的难得的资料。
Royalholidayclubbed提供的培訓工具包含關於Amazon DVA-C01 - AWS Certified Developer Associate Exam新版題庫上線認證考試的學習資料及類比訓練題，更重要的是還會給出跟考試很接近的練習題和答案。 但是要想通過DVA-C01 題庫下載資格認證卻不是一件簡單的事。不過只要你找對了捷徑，通過考試也就變得容易許多了。
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您可以先在網上下載Royalholidayclubbed為你免費提供的關於Amazon DVA-C01新版題庫上線認證考試的練習題及答案作為嘗試，之後你會覺得Royalholidayclubbed給你通過考試提供了一顆定心丸。選擇Royalholidayclubbed為你提供的針對性培訓，你可以很輕鬆通過Amazon DVA-C01新版題庫上線 認證考試。
Royalholidayclubbed的 Amazon的DVA-C01新版題庫上線的考題資料是你們成功的源泉，有了這個培訓資料，只會加快你們成功的步伐，讓你們成功的更有自信，也是保證讓你們成功的砝碼。Amazon的DVA-C01新版題庫上線的考試認證對每位IT人士來說都是非常重要的，只要得到這個認證你一定不回被職場淘汰，並且你將會被升職，加薪。
DVA-C01 PDF DEMO:
QUESTION NO: 1
A Developer needs to design an application running on AWS that will be used to consume
Amazon SQS messages that range from 1 KB up to 1GB in size.
How should the Amazon SQS messages be managed?
A. Use Amazon EFS and the Amazon SQS CLI.
B. Use Amazon S3 and the Amazon SQS Extended Client Library for Java.
C. Use Amazon S3 and the Amazon SQS CLI.
D. Use Amazon EBS and the Amazon SQS CLI.
Answer: B
QUESTION NO: 2
Which features can be used to restrict access to data in S3? Choose 2 answers
A. Set an S3 Bucket policy.
B. Use S3 Virtual Hosting
C. Create a CloudFront distribution for the bucket
D. Set an S3 ACL on the bucket or the object.
E. Enable IAM Identity Federation.
Answer: A,D
QUESTION NO: 3
A Developer is investigating an issue whereby certain requests are passing through an Amazon
API Gateway endpoint /MyAPI, but the requests do not reach the AWS Lambda function backing
/MyAPI. The Developer found that a second Lambda function sometimes runs at maximum concurrency allowed for the given AWS account.
How can the Developer address this issue?
A. Add another API Gateway stage for /MyAPI, and shard the requests
B. Reduce the throttling limits in the API Gateway /MyAPI endpoint
C. Configure the second Lambda function's concurrency execution limit
D. Manually reduce the concurrent execution limit at the account level
Answer: B
QUESTION NO: 4
A company is building an application to track athlete performance using an Amazon
DynamoDB table. Each item in the table is identified by a partition key (user_id) and a sort key
(sport_name). The table design is shown below:
(Note: Not all table attributes are shown)
A Developer is asked to write a leaderboard application to display the top performers (user_id) based on the score for each sport_name.
What process will allow the Developer to extract results MOST efficiently from the DynamoDB table?
A. Create a local secondary index with a primary key of sport_name and a sort key of score and get the results based on the score attribute.
B. Use a DynamoDB query operation with the key attributes of user_id and sport_name and order the results based on the score attribute.
C. Use a DynamoDB scan operation to retrieve scores and user_id based on sport_name, and order the results based on the score attribute.
D. Create a global secondary index with a partition key of sport_name and a sort key of score, and get the results
Answer: D
Explanation
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/SecondaryIndexes.html
https://docs.aws.amazon.com/zh_cn/amazondynamodb/latest/developerguide/GSI.html
QUESTION NO: 5
A Developer has implemented a Lambda function that needs to add new customers to an RDS database that is expected to run hundreds of times per hour. The Lambda function is configured to use 512MB of RAM and is based on the following pseudo code:
After testing the Lambda function, the Developer notices that the Lambda execution time is much longer than expected. What should the Developer do to improve performance?
A. Move the database connection and close statement out of the handler. Place the connection in the global space.
B. Replace RDS wit Amazon DynamoDB to implement control over the number of writes per second.
C. Increase the amount of RAM allocated to the Lambda function, which will increase the number of threads the Lambda can use.
D. Increase the size of the RDS database to allow for an increased number of database connections each hour.
Answer: A
Explanation
Refer AWS documentation - Lambda Best Practices
Take advantage of Execution Context reuse to improve the performance of your function. Make sure any externalized configuration or dependencies that your code retrieves are stored and referenced locally after initial execution. Limit the re-initialization of variables/objects on every invocation.
Instead use static initialization/constructor, global/static variables and singletons. Keep alive and reuse connections (HTTP, database, etc.) that were established during a previous invocation.
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Updated: May 28, 2022
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