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DVA-C01考試重點 - Amazon AWS Certified Developer Associate Exam最新題庫資源 - Royalholidayclubbed
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在如今人才濟濟的社會中，IT專業人士是很受歡迎的，但競爭也很大。所以很多IT專業人士通過一些比較難的權威的IT認證考試來穩固自己，而我們Royalholidayclubbed是專門為參加IT認證考試的考生提供便利的。 我們Royalholidayclubbed Amazon的DVA-C01考試重點考試培訓資料不僅為你節省能源和資源，還有時間很充裕，因為我們所做的一切，你可能需要幾個月來實現，所以你必須要做的是通過我們Royalholidayclubbed Amazon的DVA-C01考試重點考試培訓資料，為了你自己，獲得此證書。我們Royalholidayclubbed一定會幫助你獲得你所需要的知識和經驗，還為你提供了詳細的Amazon的DVA-C01考試重點考試目標，所以有了它，你不得獲得考試認證。 或許其他網站也提供Amazon DVA-C01考試重點 認證考試的相關資料，但如果你相互比較你就會發現Royalholidayclubbed提供的資料是最全面，品質最高的，而且其他網站的大部分資料主要來源於Royalholidayclubbed。
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Amazon的DVA-C01 - AWS Certified Developer Associate Exam考試重點考試認證是屬於那些熱門的IT認證，也是雄心勃勃的IT專業人士的夢想，這部分考生需要做好充分的準備，讓他們在DVA-C01 - AWS Certified Developer Associate Exam考試重點考試中獲得最高分，使自己的配置檔相容市場需求。 考試的大綱有什麼變化，以及考試中可能會出現的新題型，這些內容都包括在了資料中。所以，如果你想參加IT考試，最好利用Royalholidayclubbed的資料。
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你用過Royalholidayclubbed的DVA-C01考試重點考古題嗎？這個考古題是最近剛更新的資料，包括了真實考試中可能出現的所有問題，保證你一次就可以通過考試。這個考古題可以讓你看到你意想不到的成果。
DVA-C01 PDF DEMO:
QUESTION NO: 1
Company D is running their corporate website on Amazon S3 accessed from
http//www.companyd.com.
Their marketing team has published new web fonts to a separate S3 bucket accessed by the S3 endpoint https://s3-us-west-1.amazonaws.com/cdfonts.
While testing the new web fonts, Company D recognized the web fonts are being blocked by the browser.
What should Company D do to prevent the web fonts from being blocked by the browser?
A. Enable versioning on the cdfonts bucket for each web font
B. Configure the cdfonts bucket to allow cross-origin requests by creating a CORS configuration
C. Create a policy on the cdfonts bucket to enable access to everyone
D. Add the Content-MD5 header to the request for webfonts in the cdfonts bucket from the website
Answer: B
QUESTION NO: 2
A Developer created a dashboard for an application using Amazon API Gateway, Amazon S3,
AWS Lambda, and Amazon RDS. The Developer needs an authentication mechanism allowing a user to sign in and view the dashboard. It must be accessible from mobile applications, desktops, and tablets, and must remember user preferences across platforms.
Which AWS service should the Developer use to support this authentication scenario?
A. AWS Directory Service
B. AWS KMS
C. Amazon Cognito
D. Amazon IAM
Answer: C
QUESTION NO: 3
Which of the following services are included at no additional cost with the use of the AWS platform? Choose 2 answers
A. Auto Scaling
B. Elastic Compute Cloud
C. CloudFormation
D. Elastic Load Balancing
E. Simple Storage Service
F. Simple Workflow Service
Answer: A,C
QUESTION NO: 4
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.
QUESTION NO: 5
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
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Updated: May 28, 2022
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