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Oracle 1Z0-921 Exam Syllabus Topics:
| Section | Objectives |
|---|---|
| Security and User Management | - User accounts and privileges - Authentication plugins (PAM, AD integration) |
| Database Design and Development | - Data types and normalization - Schema design principles |
| Monitoring and Troubleshooting | - Basic troubleshooting techniques - Performance monitoring |
| MySQL Architecture and Installation | - Installation and configuration - MySQL server architecture |
| Backup, Recovery, and Replication | - Replication concepts and configuration - Backup strategies |
| Data Management and SQL Operations | - SQL queries and DML operations - Indexing and optimization basics |
Oracle MySQL 2021 Implementation Essentials Sample Questions:
Question #1
You are using the innoDB engine and the innodb_f ile_per_table option is set.
You delete a significant number of rows of a large table named inventory and issue the command optimize table inventory.
What will happen to the inventory table?
A. The table will be checked for errors and repaired.
B. The table will be optimized and replicated.
C. The table storage space will be reduced.
D. The table statistics will be stored.
Question #2
Which best describes database horizontal scale-out architecture deployment in MySQL in a read-heavy environment?
A. Deploy MySQL read-only slaves utilizing replication so that the slaves can be used for reads.
B. Adding more MySQL servers and sharing the same dacadir on a shared storage component like NFS.
C. Allocating more CPU to the database instance to improve throughput performance.
D. Increasing the memory capacity so that there is a larger pooling buffer to increase the database read performance.
E. Increasing the storage capacity so that the database can store more data to scale.
Question #3
What are the two main components required to set up persistent storage for MySQL on Kubernetes?
Response:
A. PVC (Persistent Volume Claim) and ConfigMap
B. Secret and Deployment
C. Pod and ReplicaSet
D. PVC (Persistent Volume Claim) and PV (Persistent Volume)
Question #4
You have created your Compute instance using an Oracle-provided Oracle Linux image.
You want to log in to your OCI Compute instance using SSH. Which three items do you need for this process?
A. The root user
B. Public IP address
C. SSH private key
D. SSH public key
E. User Password
F. The opc user
Question #5
What are two ways in which customers can receive notifications such as outages, configuration changes, database emergencies, and other information on their Database as a Service instances?
A. Email
B. Direct support call from an Oracle representative
C. Browser pop-ups
D. SMS-notification tab on the dashboard
E. Application-to-application messaging
Solutions:
| Question #1 Correct Answer: B | Question #2 Correct Answer: E | Question #3 Correct Answer: D | Question #4 Correct Answer: F | Question #5 Correct Answer: A,D |
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