Oracle Dba Rman Interview Questions And Answers Pdf

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oracle dba rman interview questions and answers pdf

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Excellent post. I used to be checking continuously this blog and I am impressed! Extremely helpful information particularly the remaining part : I deal with such info much.

RMAN (Recovery Manager) Interview Questions & Answers

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Sunday, March 7, Get help. Validation of the backup. Block level backup. Incremental backup. Recovery catalog etc. Explain how RMAN performs the backup? When RMAN is initiated, it will start reading datafile headers for used block information. It will get that from bitmap blocks. With that information, RMAN will copy blocks to the backup piece.

What is the reason? The reason would be lost of contact with tape drive, so we need to check with backup team. It means two backups on same database are trying to take controlfile backup and one of the backup is placed in queue until first one completes. What is your backup strategy? Daily we will take full RMAN backup for all prod databases and will take structural export backup.

For dev and other environments, it is a weekly twice procedure. Apart from this, we have archive backup scheduled for all prod databases every 30min. If you have a 2 TB database and need to design a backup policy, how you will do that? We need to choose RMAN incremental level 1 backup as it will complete faster. Weekend we will take full RMAN level 0 backup. What is your backup retention policy is set to?

It will help in avoiding to take backup of a datafile which is not changed when we are performing image copy of database through RMAN. Why RMAN is best over other backup methods? Because it uses block level backup which reduces backup size and time. What are the new features of oracle 10g RMAN?

We have encryption of backup, using archive deletion policy etc. We have some new commands like list failure, validate database etc and also we can now use virtual private recovery catalog. What is the need of recovery catalog? Generally RMAN backup information will be stored in target database controlfile. In case we lost all controlfiles, it will be a problem in using existing backups. So recovery catalog is another database that to be configured, so that all the target RMAN backup information will now be stored in that.

Suppose we lost datafiles in recovery catalog, how to recover them? As recovery catalog is also a database, we will be performing backup for the same.

Sowe can restore and recover from that backup. What is mean by channel allocation in RMAN? It is allocating a medium to send backup to backup device. Generally it is 7 days. How many recovery catalogs you will create for prod databases? Only one is enough.

What are the advantages of differential and cumulative incremental backups? Differential will take incremental backup in a daily fashion where as cumulative will take backup so that it includes all the other day changes also. If you are the DBA, will you choose differential or cumulative and why? I will choose differential because it will complete faster.

How RMAN performs incremental backup of database? RMAN will first gets block information from bitmap block. It will start comparing block SCN with the last level 0 backup. What is the difference between full backup and level 0 backup? Level 0 backup will try to compare the block SCN with last backup, it will fail and then performs backup where as full backup no comparison is required.

How can I make incremental backup faster? Using change tracking file in 10g. I have a image copy of database, can we apply level 1 incremental backup on that and recover the database? Yes we can apply. Which process is responsible in writing latest SCN to controlfiles which are re- created? Server process. Oracle Performance Tuning Interview Questions.

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Oracle RMAN interview questions

Please correct the 15 question answer it should be backup set is logical and backup piece is physical. Hi Satya, You're posts are really very help full to me i need a help from you. Regards, Seshu. Hi Seshu, Thank you very much All these interview questions are real time. I faced all these questions each question at least 3 times. Hi Satya, Really thanks a lot for your help.


Part 1 – RMAN Interview Questions (Basic) Q1. What are the main features of RMAN? Q2. Explain the expired backup and obsolete backup? Q3. Explain the Level 0, Level 1 backups in? Q4. Is it possible to take a backup when it is in down status? Q5. Q6. Q7. Q8.


RMAN Interview Questions

Home page Contact Us. Net DWH New. Oracle Backup and Recovery Interview Questions.

Oracle RMAN Interview Questions

This is good for both junior level and experienced professional. What is RMAN? Answer RMAN stands for recovery manager.

ORACLE DATABASE RMAN INTERVIEW QUESTIONS

This is just the kind of information that i had been looking for, i'm already your rss reader now and i would regularly watch out for the new posts, once again hats off to you! Thanks a million once again, Regards, Synonyms. I also found some good website where you find some good oracle dba resource have look www. There is a very useful information,keep posting.

 - Подтирка для задницы. Беккер не шелохнулся. Что-то сказанное панком не давало ему покоя. Я прихожу сюда каждый вечер.


Oracle RMAN Interview Questions are must for Oracle DBA's looking for Answer RMAN does not put database/tablespace/datafile in backup.


 Ни за. Ты же меня прихлопнешь. - Я никого не собираюсь убивать. - Что ты говоришь. Расскажи это Чатрукьяну.

Мою колонку перепечатывают издания по всему миру. - Сэр! - Беккер поднял обе руки, точно признавая свое поражение.  - Меня не интересует ваша колонка. Я из канадского консульства. Я пришел, чтобы убедиться, что с вами все в порядке.

5 Comments

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  3. Roux D. 15.04.2021 at 21:26

    RMAN is an Oracle Database client that performs backup and recovery tasks on your databases and automates the administration of your backup strategies.

  4. Runnaway 16.04.2021 at 08:35

    When new incarnation happens, the old backup information in control file will be lost.

  5. Namo G. 18.04.2021 at 10:17

    It is an Oracle Database client that is used for the backup and recovery tasks on our databases and it can also automate the administration of our backup strategies.