A Company Is Moving Its On-Premises Oracle Database to Amazon

question 97

Multiple Choice

A company is moving its on-premises Oracle database to Amazon Aurora PostgreSQL. The database has several applications that write to the same tables. The applications need to be migrated one by one with a month in between each migration Management has expressed concerns that the database has a high number of reads and writes. The data must be kept in sync across both databases throughout tie migration. What should a solutions architect recommend?

• A) Use AWS DataSync for the initial migration. Use AWS Database Migration Service (AWS DMS) to create a change data capture (CDC) replication task and a table mapping to select all cables.
• B) Use AWS DataSync for the initial migration. Use AWS Database Migration Service (AWS DMS) to create a full load plus change data capture (CDC) replication task and a table mapping to select all tables.
• C) Use the AWS Schema Conversion Tool with AWS DataBase Migration Service (AWS DMS) using a memory optimized replication instance. Create a full load plus change data capture (CDC) replication task and a table mapping to select all tables.
• D) Use the AWS Schema Conversion Tool with AWS Database Migration Service (AWS DMS) using a compute optimized replication instance. Create a full load plus change data capture (CDC) replication task and a table mapping to select the largest tables.

---

Definitions:

Transaction Cost

Any expenses incurred when buying or selling securities, including broker's fees, taxes, and other charges that can impact the investor's net returns.

Commission

The fee paid to a broker or agent for conducting a transaction, typically a percentage of the transaction value.

Limit Order Book

A record of all open buy and sell orders for a specific security or asset, organized by price level.

Market Buy Order

An order to purchase a security immediately at the best available current price.