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IT Certifications · 1Z0-1193-26

Oracle Exadata Database Service Professional Exam Practice Test

The Oracle Exadata Database Service Professional Exam practice page covers Exadata database-service architecture and operational choices in cloud and Cloud@Customer environments. Its question bank includes scenarios about VM clusters, database server CPU capacity, cell-to-compute networking, maintenance windows, and responsibilities shared between Oracle and the customer.

Exam overview

Exam providerOracle
Exam code1Z0-1193-26
CategoryIT Certifications

About the Oracle Exadata Database Service Professional Exam

Exadata service operations require understanding how database VM clusters provide an environment for database instances and how allocated server CPU capacity affects available resources. Network design matters at both the Exadata cell-to-compute layer and the client-access layer, where OCI network controls limit permitted traffic. Operational decisions also include scheduling infrastructure maintenance, testing database software changes before production rollout, and using instance-level availability design to reduce interruption risk. Other scenarios address Oracle Data Guard’s role in database protection and Oracle Net encryption for client connections. For Cloud@Customer, distinguish customer-managed responsibilities from the infrastructure work handled by the service. These concepts support practical decisions about capacity, connectivity, change risk, availability, and secure database access.

Sample Practice Questions

Review a selection from this exam's published US Practice Tests practice bank.

Question 1

Why is a cell-to-compute network important in an Exadata system?

  1. AIt carries communication between database compute nodes and Exadata Storage Servers
  2. BIt stores database backups independently of all storage servers
  3. CIt authenticates database users without a database
  4. DIt replaces the client network for every application connection
Show answerCorrect answer: A

The cell-to-compute network supports communication between database servers and storage cells, including database I/O and Exadata offload-related traffic.

Question 2

When allocating CPU resources to an Exadata Database Service VM cluster, what does the configured database server CPU capacity primarily determine?

  1. AThe number of CPU cores made available to the VM cluster from its database servers
  2. BThe number of storage cells automatically added to the Exadata system
  3. CThe database character set selected at creation
  4. DThe number of archived log destinations
Show answerCorrect answer: A

The VM cluster's CPU allocation determines the compute capacity assigned from the database servers to that cluster. It does not determine storage-cell count, character set, or redo destinations.

Question 3

In a managed cloud database service, what is the main benefit of using a maintenance window for infrastructure updates?

  1. AIt provides a planned period for eligible maintenance activities
  2. BIt guarantees that no database process will be interrupted under any circumstances
  3. CIt automatically approves every customer application change
  4. DIt prevents administrators from monitoring service health
Show answerCorrect answer: A

A maintenance window helps coordinate planned service maintenance. It does not guarantee zero impact for every activity, so customers should review service-specific maintenance behavior and prepare accordingly.

Question 4

Which description best explains the purpose of a database VM cluster in Exadata Database Service?

  1. AIt provides an isolated set of database VMs and associated resources for hosting database instances.
  2. BIt is a storage-cell firmware image distributed to all disks.
  3. CIt is a single database schema shared by all customers in a region.
  4. DIt is a backup catalog that replaces database control files.
Show answerCorrect answer: A

A database VM cluster provides the VM and resource environment in which database instances are deployed. It is distinct from storage-cell software, schemas, and backup catalogs.

Question 5

In Oracle Exadata Database Service on Cloud@Customer, which responsibility generally remains with the customer?

  1. AReplacing failed storage-cell hardware in the rack
  2. BManaging database users, schemas, and application access
  3. CRepairing the service processor on a database server
  4. DMaintaining the cloud provider's data-center power infrastructure
Show answerCorrect answer: B

Customers generally manage database-level configuration and access, including users and schemas. Physical hardware and data-center infrastructure are handled by the service provider or Oracle, according to the service model.

Question 6

A database administrator wants to reduce the risk of a failed database software change by testing the change before production rollout. Which practice best supports that goal?

  1. AValidate the change in a representative nonproduction environment first
  2. BApply the change to production without recording the current version
  3. CDisable monitoring during the change
  4. DDelete diagnostic logs before testing
Show answerCorrect answer: A

Testing in a representative nonproduction environment can reveal compatibility or operational issues before production rollout. Skipping version records, disabling monitoring, or deleting diagnostics reduces the ability to manage and investigate the change.

Question 7

A database administrator wants to reduce the risk that a single instance failure interrupts database service. Which design choice most directly addresses this at the database-instance level?

  1. AUse multiple database instances configured to access the same database
  2. BIncrease the number of database schemas
  3. CMove application tables into separate tablespaces
  4. DDisable automatic statistics collection
Show answerCorrect answer: A

Multiple instances configured for the same database can provide instance-level availability, as in an Oracle RAC configuration. The other choices do not provide an alternate database instance after an instance failure.

How to use this practice test

Access the practice questions for free. Each session presents up to 20 random questions from the 50-question bank, with results shown after the session. Use missed or uncertain items to identify concepts to revisit, such as VM cluster purpose, network controls, maintenance planning, Data Guard, or encrypted Oracle Net connections.

Preparation tips

  • Trace how database VM clusters, database server CPU capacity, and Exadata cell-to-compute networking relate to database operation.
  • For network scenarios, distinguish OCI controls that filter client traffic from Oracle Net configuration that encrypts database connections.
  • Compare the customer’s operational responsibilities in Cloud@Customer with managed infrastructure maintenance, and consider how maintenance windows affect update planning.
  • Review how Data Guard supports database architecture and how instance-level design can reduce disruption after an instance failure.
  • Practice sequencing database software changes: validate changes before production rollout and use maintenance planning to manage operational risk.
Official sourceOfficial exam page ↗