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Which database engine can you select when launching a new AWS RDS instance for a relational database?

easy📝 Conceptual Q2 of 15
AWS - RDS and Relational Databases
Which database engine can you select when launching a new AWS RDS instance for a relational database?
AMariaDB
BMongoDB
CCassandra
DDynamoDB
Step-by-Step Solution
Solution:

  1. Step 1: Identify supported relational engines

    AWS RDS supports several relational database engines including MySQL, PostgreSQL, Oracle, SQL Server, and MariaDB.

  2. Step 2: Eliminate NoSQL and unsupported engines

    MongoDB, Cassandra, and DynamoDB are NoSQL databases and not supported by RDS.

  3. Final Answer:

    MariaDB -> Option A

  4. Quick Check:

    MariaDB is a supported RDS engine [OK]
Quick Trick: RDS supports relational engines only, not NoSQL [OK]
Common Mistakes:
  • Confusing DynamoDB as an RDS engine
  • Assuming MongoDB is supported in RDS
  • Thinking Cassandra is supported by RDS

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