Oracle 1Z0-076 Exam - Topic 8 Question 26 Discussion

Actual exam question for Oracle's 1Z0-076 exam

Question #: 26
Topic #: 8

[All 1Z0-076 Questions]

Your Data Guard configuration consists of these components and settings:

1. A primary database

2. A remote physical standby database

3. Real-time query is enabled

4. Redo transport mode is synchronous

5. Protection mode is maximum availability

6. The Data Guard broker is used

You notice that the standby destination fails to acknowledge reception of redo within net_timeout period of time.

Which is true in this scenario?

AReal-time query will be disabled on the physical standby.

BThe protection mode will automatically change to Maximum Performance.

CSynchronous redo transport mode connections to the standby database are terminated.

DThe physical standby database instance is shut down by the Data Guard broker.

Show Suggested Answer

Suggested Answer: A, B, C, F

The SQL apply lag on a logical standby database can be caused by several factors:

A: An undersized undo tablespace can lead to delays in SQL apply operations as it may not be able to handle the volume of undo records generated by the SQL apply process.

B: SQL apply operations that do full table scans can consume significant system resources, potentially leading to higher apply lag.

C: An increased number of bulk updates on the primary database may generate a large volume of redo data, which can cause apply lag if the logical standby cannot apply the changes quickly enough.

F: An undersized shared pool may affect the parsing and execution of SQL statements by SQL apply, which can contribute to the apply lag.

Option D is less likely to be a direct cause of SQL apply lag compared to bulk updates, as inserts generate new data rather than modifying existing data, which SQL apply can typically handle more efficiently.

Option E is incorrect because the size of the standby redo log files on the primary database impacts redo transport lag, not SQL apply lag.

by Flo at Dec 09, 2024, 03:37 PM

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Sylvie

3 months ago

Definitely not A, I've seen it stay active before.

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Hermila

4 months ago

Synchronous redo transport should just retry, right?

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Thaddeus

4 months ago

Wait, does that mean the standby instance shuts down? Sounds extreme!

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Chau

4 months ago

I think the protection mode won't change automatically.

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Denise

4 months ago

Real-time query will be disabled if the standby doesn't acknowledge in time.

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Pamella

4 months ago

I don't think the Data Guard broker would shut down the standby instance automatically; that seems too drastic for just a timeout issue.

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Fausto

5 months ago

I practiced a similar question where the redo transport mode was involved, and I feel like the connections might get terminated if there's a timeout.

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Chaya

5 months ago

I remember something about the protection mode changing if there's a delay in redo transport, but I can't recall if it specifically goes to Maximum Performance.

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Ezekiel

5 months ago

I think if the standby doesn't acknowledge the redo in time, it might affect the real-time query feature, but I'm not sure if it gets disabled outright.

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Lucina

5 months ago

I've got a strategy here. I'll start by considering the impact of the synchronous redo transport mode and the maximum availability protection mode. That should help me narrow down the most likely outcome.

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Chauncey

5 months ago

I'm a bit confused on this one. The options don't seem to directly match the information provided. I'll need to really think through how the different settings interact in this scenario.

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Gail

5 months ago

Alright, let's break this down step-by-step. The protection mode is set to maximum availability, so I'd expect the system to try to maintain that even if the standby is having issues.

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Kati

5 months ago

Okay, let's see. The question mentions the standby destination failing to acknowledge redo reception within the net_timeout period. I'm guessing that's the key piece of information to focus on.

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Anisha

5 months ago

Hmm, this seems like a tricky one. I'll need to carefully read through the details and think through the implications of the Data Guard configuration settings.

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Irma

10 months ago

Real-time query being disabled on the standby? That's a new one. I haven't heard of that happening in a Data Guard setup before.

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Shaun

9 months ago

I wonder if the synchronous redo transport mode connections will be terminated.

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Marsha

9 months ago

Maybe synchronous redo transport mode connections to the standby database are terminated.

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Jill

9 months ago

Maybe the protection mode will automatically change to Maximum Performance.

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Harley

9 months ago

I believe the protection mode will automatically change to Maximum Performance.

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Colette

9 months ago

I think real-time query will be disabled on the physical standby.

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Nickie

9 months ago

I think real-time query being disabled is a possibility in this scenario.

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Sharika

10 months ago

Haha, I bet the Data Guard broker is just going to shut down the whole standby instance. That'll teach it to be late with the redo acknowledgements!

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Celia

9 months ago

User 3: Maybe real-time query will be disabled on the physical standby instead.

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Gladys

10 months ago

User 2: No, I believe the Data Guard broker will shut down the physical standby database instance.

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Galen

10 months ago

User 1: I think the protection mode will automatically change to Maximum Performance.

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Nina

11 months ago

Wait, is the protection mode really going to change to Maximum Performance? That doesn't sound right to me, given the settings mentioned.

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Luis

10 months ago

D) The physical standby database instance is shut down by the Data Guard broker.

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Carmela

10 months ago

C) Synchronous redo transport mode connections to the standby database are terminated.

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Ranee

10 months ago

B) The protection mode will automatically change to Maximum Performance.

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Jesus

10 months ago

A) Real-time query will be disabled on the physical standby.

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Leonard

11 months ago

C seems like the most likely option here. If the standby can't acknowledge the redo within the timeout, the synchronous connections would likely be terminated.

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