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Oracle Cloud Database 2024 Migration Professional Sample Questions (Q137-Q142):

NEW QUESTION # 137
what component within the technical architecture is responsible for schema conversion and data transformation between the source and staging databases?

A. Oracle GoldenGate Replicat process
B. Oracle Database Migration Service (DMS)
C. Oracle SQL Developer Data Modeler
D. User-defined custom scripts

Answer: B

Explanation:
Here's a breakdown of why:
Oracle Database Migration Service (DMS): This tool is specifically designed for heterogeneous database migrations and offers features for schema conversion, data transformation, and data migration. It's the ideal component for handling these tasks in a ZDM scenario.
The other options are not directly responsible for schema conversion and data transformation:
A). Oracle GoldenGate Replicat process is responsible for applying data changes to the target database.
C). Oracle SQL Developer Data Modeler is a tool for designing and visualizing database schemas.
D). User-defined custom scripts can be used for specific data transformations but may not be as efficient or comprehensive as a specialized tool like DMS.

NEW QUESTION # 138
which of the following statements accurately describes the role of redo apply during the cutover phase?

A. Redo apply is not used in ZDM, as data is synchronized through a separate mechanism during the cutover phase.
B. Redo apply replays captured redo information on the target database to bring it to a point-in-time consistent with the source.
C. Redo apply is disabled on the source database to prevent any further changes from being replicated.
D. Redo apply continuously streams changes from the source to the target database, ensuring data consistency.

Answer: B

Explanation:
c). Redo apply replays captured redo information on the target database to bring it to a point-in-time consistent with the source.
Here's a breakdown of why:
Redo apply is a crucial component of ZDM that ensures data consistency between the source and target databases during the cutover phase.
It replays captured redo information on the target database to bring it to a point-in-time consistent with the source database. This ensures that the target database has all the latest changes that occurred on the source database up until the cutover point.
The other options are incorrect:
a). Redo apply is disabled on the source database: This is not necessary, as redo apply is used to stream changes from the source to the target.
b). Redo apply continuously streams changes from the source to the target database: This is partially correct, but it doesn't fully capture the role of redo apply during the cutover phase. Redo apply is primarily used to bring the target database to a point-in-time consistent with the source.
d). Redo apply is not used in ZDM: This is incorrect. Redo apply is a fundamental component of ZDM and is essential for ensuring data consistency during the cutover phase.

NEW QUESTION # 139
During a Data Pump import operation with a large dataset, which parameter can be used to optimize performance and minimize downtime?

A. Setting the NETWORK_TIMEOUT parameter to a higher value.
B. Enabling the ROWGRANULARITY parameter for row-level import processing.
C. Utilizing the TRANSPORT_DATA parameter to include table data during import.
D. Configuring the STATISTICS parameter to gather detailed import statistics.

Answer: B

Explanation:
Here's a breakdown of why:
ROWGRANULARITY parameter: This parameter allows for row-level import processing, which can significantly improve performance for large datasets. By processing data at the row level, Data Pump can optimize resource utilization and reduce the overall import time.
The other options are less effective for optimizing performance and minimizing downtime:
A). The NETWORK_TIMEOUT parameter is primarily used for network-related timeouts and doesn't directly impact import performance.
B). The STATISTICS parameter is used to gather detailed import statistics after the import is complete. While it can provide valuable information for analysis, it doesn't directly optimize performance during the import process.
D). The TRANSPORT_DATA parameter is used to specify whether table data should be included during the export or import operation. It's a mandatory parameter and doesn't directly impact performance.

NEW QUESTION # 140
What should you consider when choosing a network strategy for migrating a large database to OCI? (Choose two)

A. Geographical location of data centers
B. Data type and structure
C. Network bandwidth availability
D. Database size alone

Answer: A,C

Explanation:
Both network bandwidth availability and the geographical location of data centers impact the speed and efficiency of data transfer during migration.

NEW QUESTION # 141
During an Oracle Database migration to OCI, which of the following statements accurately reflects the concept of an online migration?

A. It allows for user access to the source database during the entire migration process.
B. It requires minimal to no downtime for the source database during migration.
C. It involves stopping all database services and copying the complete database.
D. It utilizes transportable tablespaces to move specific schema objects online.

Answer: B

Explanation:
This statement accurately reflects the concept of an online migration in Oracle Database migration to OCI.
Online migration involves:
Minimizing downtime: The goal is to keep the source database accessible to users throughout the migration process.
Using replication technologies: Tools like Data Guard or GoldenGate are typically used to replicate data from the source database to the target database in real time.
Switching over: Once the replication is complete, a cutover process can be performed to switch users over to the target database, minimizing downtime.

NEW QUESTION # 142
......

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1Z0-1194-24 Exam Questions And Answers - Reliable 1Z0-1194-24 Test Online

Reliable 1Z0-1194-24 Test Online, 1Z0-1194-24 Exam Passing Score

Oracle Cloud Database 2024 Migration Professional Sample Questions (Q137-Q142):

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