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السؤال #1
A Database Specialist is working with a company to launch a new website built on Amazon Aurora with several Aurora Replicas. This new website will replace an on-premises website connected to a legacy relational database. Due to stability issues in the legacy database, the company would like to test the resiliency of Aurora. Which action can the Database Specialist take to test the resiliency of the Aurora DB cluster?
A. Stop the DB cluster and analyze how the website responds
B. Use Aurora fault injection to crash the master DB instance
C. Remove the DB cluster endpoint to simulate a master DB instance failure
D. Use Aurora Backtrack to crash the DB cluster
عرض الإجابة
اجابة صحيحة: A
السؤال #2
A company has an on-premises system that tracks various database operations that occur over the lifetime of a database, including database shutdown, deletion, creation, and backup. The company recently moved two databases to Amazon RDS and is looking at a solution that would satisfy these requirements. The data could be used by other systems within the company. Which solution will meet these requirements with minimal effort?
A. Create an Amazon Cloudwatch Events rule with the operations that need to be tracked on Amazon RD
B. Create an AWS Lambda function to act on these rules and write the output to the tracking systems
C. Create an AWS Lambda function to trigger on AWS CloudTrail API call
D. Filter on specific RDS API calls and write the output to the tracking systems
E. Create RDS event subscription
F. Have the tracking systems subscribe to specific RDS event system notifications
عرض الإجابة
اجابة صحيحة: A
السؤال #3
A Database Specialist is setting up a new Amazon Aurora DB cluster with one primary instance and three Aurora Replicas for a highly intensive, business-critical application. The Aurora DB cluster has one mediumsized primary instance, one large-sized replica, and two medium sized replicas. The Database Specialist did not assign a promotion tier to the replicas. In the event of a primary failure, what will occur?
A. Aurora will promote an Aurora Replica that is of the same size as the primary instance
B. Aurora will promote an arbitrary Aurora Replica
C. Aurora will promote the largest-sized Aurora Replica
D. Aurora will not promote an Aurora Replica
عرض الإجابة
اجابة صحيحة: B
السؤال #4
A retail company with its main office in New York and another office in Tokyo plans to build a database solution on AWS. The company’s main workload consists of a mission-critical application that updates its application data in a data store. The team at the Tokyo office is building dashboards with complex analytical queries using the application data. The dashboards will be used to make buying decisions, so they need to have access to the application data in less than 1 second. Which solution meets these r
A. Use an Amazon RDS DB instance deployed in the us-east-1 Region with a read replica instance in the apnortheast-1 Regio
B. Create an Amazon ElastiCache cluster in the ap-northeast-1 Region to cacheapplication data from the replica to generate the dashboards
C. Use an Amazon DynamoDB global table in the us-east-1 Region with replication into the ap-northeast-1Regio
D. Use Amazon QuickSight for displaying dashboard results
E. Use an Amazon RDS for MySQL DB instance deployed in the us-east-1 Region with a read replicainstance in the ap-northeast-1 Regio
F. Have the dashboard application read from the read replica
عرض الإجابة
اجابة صحيحة: C
السؤال #5
An IT consulting company wants to reduce costs when operating its development environment databases. The company’s workflow creates multiple Amazon Aurora MySQL DB clusters for each development group. The Aurora DB clusters are only used for 8 hours a day. The DB clusters can then be deleted at the end of the development cycle, which lasts 2 weeks. Which of the following provides the MOST cost-effective solution?
A. Use AWS CloudFormation template
B. Deploy a stack with the DB cluster for each development group
C. Use the Aurora DB cloning featur
D. Deploy a single development and test Aurora DB instance, and createclone instances for the development group
E. Delete the clones at the end of the development cycle
F. Use Aurora Replica G
عرض الإجابة
اجابة صحيحة: D
السؤال #6
A company maintains several databases using Amazon RDS for MySQL and PostgreSQL. Each RDS database generates log files with retention periods set to their default values. The company has now mandated that database logs be maintained for up to 90 days in a centralized repository to facilitate real-time and after- the-fact analyses. What should a Database Specialist do to meet these requirements with minimal effort?
A. Create an AWS Lambda function to pull logs from the RDS databases and consolidate the log files in an Amazon S3 bucke
B. Set a lifecycle policy to expire the objects after 90 days
C. Modify the RDS databases to publish log to Amazon CloudWatch Log
D. Change the log retention policy for each log group to expire the events after 90 days
E. Write a stored procedure in each RDS database to download the logs and consolidate the log files in an Amazon S3 bucke
F. Set a lifecycle policy to expire the objects after 90 days
عرض الإجابة
اجابة صحيحة: D
السؤال #7
A Database Specialist needs to define a database migration strategy to migrate an on-premises Oracle database to an Amazon Aurora MySQL DB cluster. The company requires near-zero downtime for the data migration. The solution must also be cost-effective. Which approach should the Database Specialist take?
A. Dump all the tables from the Oracle database into an Amazon S3 bucket using datapump (expdp)
B. Load the data from the S3 bucket to the Aurora DB cluster
C. Order an AWS Snowball appliance and copy the Oracle backup to the Snowball applianc
D. Once theSnowball data is delivered to Amazon S3, create a new Aurora DB cluste
E. Enable the S3 integration tomigrate the data directly from Amazon S3 to Amazon RDS
F. Use the AWS Schema Conversion Tool (AWS SCT) to help rewrite database objects to MySQL during theschema migratio G
عرض الإجابة
اجابة صحيحة: ACF
السؤال #8
The Development team recently executed a database script containing several data definition language (DDL) and data manipulation language (DML) statements on an Amazon Aurora MySQL DB cluster. The release accidentally deleted thousands of rows from an important table and broke some application functionality. This was discovered 4 hours after the release. Upon investigation, a Database Specialist tracked the issue to a DELETE command in the script with an incorrect WHERE clause filtering the wrong set of row
A. Quickly rewind the DB cluster to a point in time before the release using Backtrack
B. Perform a point-in-time recovery (PITR) of the DB cluster to a time before the release and copy the deleted rows from the restored database to the original database
C. Restore the DB cluster using the manual backup snapshot created before the release and change the application configuration settings to point to the new DB cluster
D. Create a clone of the DB cluster with Backtrack enable
E. Rewind the cloned cluster to a point in time before the releas
F. Copy deleted rows from the clone to the original database
عرض الإجابة
اجابة صحيحة: C
السؤال #9
A company is running an Amazon RDS for PostgeSQL DB instance and wants to migrate it to an Amazon Aurora PostgreSQL DB cluster. The current database is 1 TB in size. The migration needs to have minimal downtime. What is the FASTEST way to accomplish this?
A. Create an Aurora PostgreSQL DB cluste
B. Set up replication from the source RDS for PostgreSQL DB instance using AWS DMS to the target DB cluster
C. Use the pg_dump and pg_restore utilities to extract and restore the RDS for PostgreSQL DB instance to the Aurora PostgreSQL DB cluster
D. Create a database snapshot of the RDS for PostgreSQL DB instance and use this snapshot to create the Aurora PostgreSQL DB cluster
E. Migrate data from the RDS for PostgreSQL DB instance to an Aurora PostgreSQL DB cluster using an Aurora Replic
F. Promote the replica during the cutover
عرض الإجابة
اجابة صحيحة: B
السؤال #10
A clothing company uses a custom ecommerce application and a PostgreSQL database to sell clothes to thousands of users from multiple countries. The company is migrating its application and database from its on premises data center to the AWS Cloud. The company has selected Amazon EC2 for the application and Amazon RDS for PostgreSQL for the database. The company requires database passwords to be changed every 60 days. A Database Specialist needs to ensure that the credentials used by the web application to
A. Store the credentials in a text file in an Amazon S3 bucke
B. Restrict permissions on the bucket to the IAM role associated with the instance profile onl
C. Modify the application to download the text file and retrieve the credentials on start u
D. Update the text file every 60 days
E. Configure IAM database authentication for the application to connect to the databas
F. Create an IAM user and map it to a separate database user for each ecommerce use G
عرض الإجابة
اجابة صحيحة: B

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