Oracle Exam 1Z0-084 Topic 1 Question 31 Discussion

Actual exam question for Oracle's 1Z0-084 exam

Question #: 31
Topic #: 1

Which two actions can cause invalidation or loss of one or more results in the SQL Query Result Cache?

AOne or more results were aged out of the result cache.

Bresult_cache_max_size is set dynamically to 0.

CA request was made by the RCBG background of a non-RAC database.

DA request was made by the RCBG background process in a physical standby database that is opened read only and whose primary has a result cache.

EDecreasing the value set for RESULT_CACHE_REMOTE_EXPIRATION.

Show Suggested Answer

Suggested Answer: A, B

The SQL Query Result Cache stores the results of queries and PL/SQL function calls for reuse. However, entries in the result cache can be invalidated or lost under certain conditions:

A) Results can be aged out of the cache when the cache becomes full and new results need to be stored. This process ensures that the cache does not exceed its allocated memory and that it contains the most recently used entries.

B) Setting the RESULT_CACHE_MAX_SIZE parameter to 0 will effectively disable the result cache and all cached results will be lost, as Oracle will no longer allocate any memory to the result cache.

Oracle Database Performance Tuning Guide, 19c

by Shanice at Mar 21, 2025, 04:18 AM

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Danica

2 months ago

I'm going to have to go with my gut on this one. I think the answer is A and D. Anything that affects the primary database's result cache could cause problems.

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Pamella

22 days ago

Yes, understanding the potential causes of invalidation or loss of results is key to maintaining a reliable database.

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Margot

28 days ago

It's important to be aware of what can cause issues with the result cache in SQL queries.

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Vesta

1 months ago

I think you're right, those actions could definitely impact the SQL Query Result Cache.

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Marsha

1 months ago

I think you're right, those actions could definitely lead to loss of results in the SQL Query Result Cache.

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Laurel

1 months ago

I agree, A and D seem like the most likely causes of invalidation or loss of results.

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Francoise

2 months ago

I agree, A and D seem like the most likely causes of invalidation.

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Lavina

2 months ago

I think decreasing the value for RESULT_CACHE_REMOTE_EXPIRATION could also lead to invalidation of results, as it affects how long remote results are kept in the cache.

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Chaya

2 months ago

I believe option B could also cause loss of results, as setting result_cache_max_size to 0 would clear the cache.

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Cristy

3 months ago

Haha, this exam question is like a bad SQL dad joke. But I'm going to go with B and E - messing with the cache size and expiration is just asking for trouble.

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