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Below are some steps to apply for the AWS Certified Database Specialty Exam

In order to apply for the AWS Certified Database - Specialty, You have to follow these steps

Sign in to AWS TrainingClick Certification in the top navigationClick AWS Certification Account ButtonFollowed by Schedule New ExamSearch the AWS Certified Database - Specialty examClick either the Schedule at PSI or Schedule at Pearson VUE buttonSelect Date, time and Schedule your test

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Amazon AWS Certified Database - Specialty (DBS-C01) Exam Sample Questions (Q240-Q245):

NEW QUESTION # 240
A financial company has allocated an Amazon RDS MariaDB DB instance with large storage capacity to accommodate migration efforts. Post-migration, the company purged unwanted data from the instance. The company now want to downsize storage to save money. The solution must have the least impact on production and near-zero downtime.
Which solution would meet these requirements?

A. Create a new read replica and make it the primary by terminating the existing primaryB. Create a snapshot of the old databases and restore the snapshot with the required storageC. Create a new database using native backup and restoreD. Create a new RDS DB instance with the required storage and move the databases from the old instances to the new instance using AWS DMS

Answer: D

Explanation:
https://aws.amazon.com/premiumsupport/knowledge-center/rds-db-storage-size/ Use AWS Database Migration Service (AWS DMS) for minimal downtime.


NEW QUESTION # 241
A pharmaceutical company's drug search API is using an Amazon Neptune DB cluster. A bulk uploader process automatically updates the information in the database a few times each week. A few weeks ago during a bulk upload, a database specialist noticed that the database started to respond frequently with a ThrottlingException error. The problem also occurred with subsequent uploads.
The database specialist must create a solution to prevent ThrottlingException errors for the database. The solution must minimize the downtime of the cluster.
Which solution meets these requirements?

A. Create a read replica that uses a larger instance size than the primary DB instance. Offload the reads from the primary DB instance.B. Create a read replica that uses a larger instance size than the primary DB instance. Fail over the primary DB instance to the read replica.C. Take the latest backup, and restore it in a DB cluster of a larger size. Point the application to the newly created DB cluster.D. Add a read replica to each Availability Zone. Use an instance for the read replica that is the same size as the primary DB instance. Keep the traffic between the API and the database within the Availability Zone.

Answer: A

Explanation:
https://docs.aws.amazon.com/neptune/latest/userguide/manage-console-add-replicas.html Neptune replicas connect to the same storage volume as the primary DB instance and support only read operations. Neptune replicas can offload read workloads from the primary DB instance.


NEW QUESTION # 242
A gaming company has implemented a leaderboard in AWS using a Sorted Set data structure within Amazon ElastiCache for Redis. The ElastiCache cluster has been deployed with cluster mode disabled and has a replication group deployed with two additional replicas. The company is planning for a worldwide gaming event and is anticipating a higher write load than what the current cluster can handle.
Which method should a Database Specialist use to scale the ElastiCache cluster ahead of the upcoming event?

A. Increase the size of the ElastiCache cluster nodes to a larger instance size.B. Enable cluster mode on the existing ElastiCache cluster and configure separate shards for the Sorted Setacross all nodes in the cluster.C. Use the EXPIRE command and set a higher time to live (TTL) after each call to increment a given key.D. Create an additional ElastiCache cluster and load-balance traffic between the two clusters.

Answer: A


NEW QUESTION # 243
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. Use AWS Server Migration Service (AWS SMS) to import the Oracle virtual machine image as an Amazon EC2 instance. Use the Oracle Logical Dump utility to migrate the Oracle data from Amazon EC2 to an Aurora DB cluster.B. Dump all the tables from the Oracle database into an Amazon S3 bucket using datapump (expdp). Run data transformations in AWS Glue. Load the data from the S3 bucket to the Aurora DB cluster.C. Use the AWS Schema Conversion Tool (AWS SCT) to help rewrite database objects to MySQL during the schema migration. Use AWS DMS to perform the full load and change data capture (CDC) tasks.D. Order an AWS Snowball appliance and copy the Oracle backup to the Snowball appliance. Once the Snowball data is delivered to Amazon S3, create a new Aurora DB cluster. Enable the S3 integration to migrate the data directly from Amazon S3 to Amazon RDS.

Answer: C

Explanation:
https://aws.amazon.com/blogs/database/migrating-oracle-databases-with-near-zero-downtime-using-aws-dms/


NEW QUESTION # 244
After restoring an Amazon RDS snapshot from 3 days ago, a company's Development team cannot connect to the restored RDS DB instance. What is the likely cause of this problem?

A. The restored DB instance does not have Enhanced Monitoring enabledB. The production DB instance is using a custom parameter groupC. The production DB instance is using a custom option groupD. The restored DB instance is using the default security group

Answer: D

Explanation:
https://aws.amazon.com/premiumsupport/knowledge-center/rds-cannot-connect/
https://docs.aws.amazon.com/AmazonRDS/latest/UserGuide/USER_RestoreFromSnapshot.html


NEW QUESTION # 245
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