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QUESTION NO: 1
회사는 주문 관리 및 추적을 위해 Amazon DynamoDB를 사용합니다. DynamoDB 테이블은
주문 날짜를 기준으로 분할됩니다. 이 회사는 판매 이벤트 중 주문이 크게 증가하여
DynamoDB 쓰기가 제한되고 소비 된 처리량이 프로비저닝 된 처리량보다 훨씬 낮습니다.
AWS 모범 사례에 따르면이 문제를 최소 비용으로 어떻게 해결할 수 있습니까?
A. 모든 주문 날짜마다 새 DynamoDB 테이블을 생성하십시오.
B. DynamoDB 테이블의 읽기 및 쓰기 용량 단위를 늘리십시오.
C. 파티션 키 값에 난수 접미사를 추가하십시오.
D. 글로벌 보조 인덱스를 DynamoDB 테이블에 추가합니다.
Answer: C
Explanation
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/bp-partition-key- uniform-load.html
QUESTION NO: 2
Elastic Load Balancing 서비스를 사용하여 트래픽을 여러 웹 서버로 분산시키는
애플리케이션을 작성했습니다. 사용자는 이미 로그인한후 응용 프로그램을 사용하는 도중에
때때로 다시 로그인해야 한다고 불평합니다. 이것은 사용자가 디자인한 동작이 아닙니다.
이 문제를 방지 할 수 있는 가능한 해결책은 무엇입니까?
A. 인스턴스 메모리를 사용하여 세션 상태를 저장하십시오.
B. 인스턴스 스토리지를 사용하여 세션 상태를 저장하십시오.
C. EBS를 사용하여 세션 상태 저장
D. ElastiCache를 사용하여 세션 상태를 저장하십시오.
E. Glacier를 사용하여 세션 슬레이트를 저장하십시오.
Answer: D
QUESTION NO: 3
애플리케이션은 API를 통해 수신 된 수백만 개의 이벤트를 실시간으로 처리합니다.
여러 소비자가 동시에 가장 비용 효율적으로 데이터를 처리 할 수 있도록 어떤 서비스를
사용할 수 있습니까?
A. 각 애플리케이션의 SQS 대기열에 대한 팬 아웃 기능이 있는 Amazon SNS
B. 각 애플리케이션의 SQS FIFO (선입 선출) 대기열에 대한 팬 아웃이 있는 Amazon SNS
C. 아마존 키네 시스 소방서
D. Amazon Kinesis 스트림
Answer: D
QUESTION NO: 4
애플리케이션은 Amazon DynamoDB 테이블에서 데이터를 읽습니다. 하루에 여러 번
15 초 동안 응용 프로그램에서 여러 ProvisionedThroughputExceeded 오류가 발생합니다.
이 예외는 어떻게 처리해야 합니까?
A. 추가 요청에 도움이 되도록 테이블에 대한 새 글로벌 보조 인덱스를 작성하십시오.
B. 지수 백오 프로 실패한 읽기 요청을 다시 시도하십시오.
C. 실패한 읽기 요청을 즉시 다시 시도하십시오.
D. DynamoDB "UpdateItem"API를 사용하여 테이블의 프로비저닝 된 처리량 용량을
늘리십시오.
Answer: B
Explanation
https://docs.aws.amazon.com/amazondynamodb/latest/developerguide/Programming.Errors.
html
QUESTION NO: 5
개발자는 AWS로 마이그레이션되는 상태 기반 웹 서버 온 프레미스를 보유하고 있습니다.
새로운 디자인에서 개발자는 더 큰 탄력성을 가져야 합니다.
개발자는 애플리케이션을 보다 탄력적으로 만들기 위해 애플리케이션을 어떻게 리팩터링해야
합니까? (2 개를 선택하십시오.)
A. Amazon DynamoDB에서 비관적 동시성 사용
B. Auto Scaling 그룹과 함께 Amazon CloudFront 사용
C. AWS 웹 애플리케이션 방화벽과 함께 Amazon CloudFront 사용
D. 세션 상태 데이터를 Amazon DynamoDB 테이블에 저장
E. Auto Scaling 그룹과 함께 ELB 사용
Answer: D E
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Updated: May 28, 2022