AWS-Certified-Database-Specialty최신시험예상문제모음, AWS-Certified-Database-Specialty질문과답

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Amazon DBS-C01: AWS Certified Database - Specialty (DBS-C01)는 개인이 Amazon Web Services (AWS) 플랫폼에서 데이터베이스 솔루션을 설계하고 유지 관리하는 지식 및 기술을 검증하는 자격증 시험입니다. 이 시험은 데이터베이스 기술에 경험이 있는 개인들이 AWS 데이터베이스 서비스에 대한 지식을 확장하고 싶을 때 응시할 수 있습니다.

Amazon DBS-C01 (AWS Certified Database - Specialty (DBS-C01)) 시험은 Amazon Web Services (AWS) 플랫폼에서 데이터베이스를 설계, 배포 및 관리하는 능력과 지식을 검증하는 업계 최고의 자격증입니다. 이 시험은 AWS에서 데이터베이스를 다루는 개인들을 대상으로하며 데이터베이스 디자인, 마이그레이션, 배포, 최적화 및 문제 해결과 같은 다양한 주제를 다룹니다.

AWS 인증 데이터베이스 - 전문가 (DBS-C01) 자격증 시험은 데이터베이스 기술에 강한 배경과 AWS 클라우드 서비스를 사용한 경험이 있는 전문가를 대상으로합니다. 이 자격증 시험은 AWS에서 데이터베이스를 설계하고 관리하는 책임이있는 데이터베이스 관리자, 데이터베이스 아키텍트, 데이터베이스 개발자 및 기타 IT 전문가를위한 것입니다.

AWS-Certified-Database-Specialty최신 시험 예상문제모음

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최신 AWS Certified Database AWS-Certified-Database-Specialty 무료샘플문제 (Q112-Q117):

질문 # 112
A company is running an Amazon RDS for MySQL Multi-AZ DB instance for a business-critical workload.
RDS encryption for the DB instance is disabled. A recent security audit concluded that all business-critical applications must encrypt data at rest. The company has asked its database specialist to formulate a plan to accomplish this for the DB instance.
Which process should the database specialist recommend?

A. Create a snapshot of the unencrypted DB instance. Create an encrypted copy of the snapshot. Restore the DB instance from the encrypted snapshot.
B. Create an encrypted snapshot of the unencrypted DB instance. Copy the encrypted snapshot to Amazon S3. Restore the DB instance from the encrypted snapshot using Amazon S3.
C. Temporarily shut down the unencrypted DB instance. Enable AWS KMS encryption in the AWS Management Console using an AWS managed CMK. Restart the DB instance in an encrypted state.
D. Create a new RDS for MySQL DB instance with encryption enabled. Restore the unencrypted snapshot to this DB instance.

정답：A

설명：
Explanation
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/Overview.Encryption.html#Overview.Encryption.L

질문 # 113
A Database Specialist needs to speed up any failover that might occur on an Amazon Aurora PostgreSQL DB cluster. The Aurora DB cluster currently includes the primary instance and three Aurora Replicas.
How can the Database Specialist ensure that failovers occur with the least amount of downtime for the application?

A. Call the AWS CLI failover-db-cluster command
B. Set the TCP keepalive parameters low
C. Enable Enhanced Monitoring on the DB cluster
D. Start a database activity stream on the DB cluster

정답：B

설명：
https://docs.aws.amazon.com/AmazonRDS/latest/AuroraUserGuide/AuroraPostgreSQL.BestPractices.html#AuroraPostgreSQL.BestPractices.FastFailover.TCPKeepalives

질문 # 114
A company is moving its fraud detection application from on premises to the AWS Cloud and is using Amazon Neptune for data storage. The company has set up a 1 Gbps AWS Direct Connect connection to migrate 25 TB of fraud detection data from the on-premises data center to a Neptune DB instance. The company already has an Amazon S3 bucket and an S3 VPC endpoint, and 80% of the company's network bandwidth is available.
How should the company perform this data load?

A. Use AWS Database Migration Service (AWS DMS) to transfer the data from on premises to the S3 bucket. Use the Loader command for Neptune to move the data in bulk from the S3 bucket to the Neptune DB instance.
B. Use AWS DataSync to transfer the data from on premises to the S3 bucket. Use the Loader command for Neptune to move the data in bulk from the S3 bucket to the Neptune DB instance.
C. Use the AWS CLI to transfer the data from on premises to the S3 bucket. Use the Copy command for Neptune to move the data in bulk from the S3 bucket to the Neptune DB instance.
D. Use an AWS SDK with a multipart upload to transfer the data from on premises to the S3 bucket. Use the Copy command for Neptune to move the data in bulk from the S3 bucket to the Neptune DB instance.

정답：B

설명：
"AWS DataSync is an online data transfer service that simplifies, automates, and accelerates moving data between on-premises storage systems and AWS storage services, and also between AWS storage services."
https://docs.aws.amazon.com/neptune/latest/userguide/bulk-load.html

질문 # 115
A database professional is tasked with the task of migrating 25 GB of data files from an on-premises storage system to an Amazon Neptune database.
Which method of data loading is the FASTEST?

A. Write a utility to read the data from the on-premises storage and run INSERT statements in a loop to load the data into the Neptune database.
B. Use the AWS CLI to load the data directly from the on-premises storage into the Neptune database.
C. Upload the data to Amazon S3 and use the Loader command to load the data from Amazon S3 into the Neptune database.
D. Use AWS DataSync to load the data directly from the on-premises storage into the Neptune database.

정답：C

설명：
1.Copy the data files to an Amazon Simple Storage Service (Amazon S3) bucket.
2. Create an IAM role with Read and List access to the bucket.
3. Create an Amazon S3 VPC endpoint.
4. Start the Neptune loader by sending a request via HTTP to the Neptune DB instance.
5. The Neptune DB instance assumes the IAM role to load the data from the bucket.

질문 # 116
An online gaming company is planning to launch a new game with Amazon DynamoDB as its data store. The database should be designated to support the following use cases:
Update scores in real time whenever a player is playing the game. Retrieve a player's score details for a specific game session.
A Database Specialist decides to implement a DynamoDB table. Each player has a unique user_id and each game has a unique game_id.
Which choice of keys is recommended for the DynamoDB table?

A. Create a composite primary key with game_id as the partition key and user_id as the sort key
B. Create a global secondary index with user_id as the partition key
C. Create a composite primary key with user_id as the partition key and game_id as the sort key
D. Create a global secondary index with game_id as the partition key

정답：C

설명：
https://aws.amazon.com/blogs/database/amazon-dynamodb-gaming-use-cases-and-design-patterns/
"EA uses the user ID as the partition key and primary key (a 1:1 modeling pattern)." https://aws.amazon.com/blogs/database/choosing-the-right-dynamodb-partition-key/
"Partition key and sort key: Referred to as a composite primary key, this type of key is composed of two attributes. The first attribute is the partition key, and the second attribute is the sort key."

질문 # 117
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