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Oracle Exam 1Z0-1093-25 Topic 3 Question 2 Discussion

Actual exam question for Oracle's 1Z0-1093-25 exam
Question #: 2
Topic #: 3
[All 1Z0-1093-25 Questions]

Which of the following is the recommended approach for migrating a large, mission-critical database from an on-premises Exadata system to Exadata Database Service with minimal downtime?

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Suggested Answer: B

B . Using Data Guard for physical standby and switchover:

This method enables minimal downtime migration.

Steps:

Configure Data Guard to synchronize the standby database with the primary on-premises database.

Once synchronized, perform a switchover to make the standby the new primary.

Downtime is limited to the switchover duration.

This approach leverages real-time replication to minimize disruption.

Why the other options are incorrect:

A . Export/Import with Data Pump: Too time-consuming for large databases.

C . Full backup and restore: High downtime due to the time required for data transfer and restoration.

D . Copying via SQL Developer: Not feasible for mission-critical and large databases due to slow transfer speeds.


Oracle Data Guard Documentation: Minimal Downtime Migration

by Elvera at Apr 07, 2025, 01:26 PM

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Cassie
4 days ago
Option B is the way to go. Data Guard is the industry standard for high-availability database migrations. Plus, it's like having a backup parachute for your mission-critical data.
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Anissa
6 days ago
Using SQL Developer to copy the data? That's a bit like trying to move a mountain with a toothpick. Option D is a no-go.
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Cassi
7 days ago
I'm not sure, but I think option C) Performing a full backup and restore might also be a good approach for minimal downtime.
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Cecil
9 days ago
Data Pump over a public network? Yikes, that sounds risky for a mission-critical system. I'd avoid option A.
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Gladys
10 days ago
I agree with Rodney. It makes sense to minimize downtime by using Data Guard for migration.
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Kina
13 days ago
I'd go with option C. A full backup and restore might be the safest bet, even if it takes a bit longer.
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Rodney
21 days ago
I think the recommended approach is B) Creating a physical standby database using Data Guard and switching over to the standby in OCI.
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Twana
28 days ago
Option B seems like the way to go. Data Guard is the recommended approach for mission-critical databases.
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Titus
9 days ago
C) Performing a full backup and restore to a new Exadata Database Service instance.
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Marva
10 days ago
That sounds like a solid plan. Data Guard is known for its reliability.
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Kasandra
14 days ago
B) Creating a physical standby database using Data Guard and switching over to the standby in OCI.
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