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Setting up HA and DR involves configuring high availability and disaster recovery solutions to ensure data availability and continuity.
Implementing clustering and failover mechanisms for high availability
Setting up replication and backup strategies for disaster recovery
Testing failover and disaster recovery procedures regularly
Utilizing technologies like Oracle Data Guard for DR solutions
I applied via Naukri.com and was interviewed in Feb 2024. There was 1 interview round.
Issues faced during datapatch include conflicts with existing patches, errors during patching process, and compatibility issues.
Conflicts with existing patches can cause datapatch to fail
Errors during the patching process may require troubleshooting and reapplying the patch
Compatibility issues with the database version or components can lead to issues with datapatch
Physical stand-by is a standby database that is an exact replica of the primary database, while snapshot standby is a read-only standby database that allows for testing and reporting.
Physical stand-by is an exact replica of the primary database, maintained through redo apply.
Snapshot standby is a read-only standby database that allows for testing and reporting.
Snapshot standby can be converted back to a physical stand-
Restoration steps in RAC involve restoring the database files, recovering the database, and reconfiguring the RAC environment.
Restore the database files from backup using RMAN
Recover the database using RMAN
Reconfigure the RAC environment by starting the instances and services
Configuration parameters play a crucial role in setting up Data Guard for Oracle databases.
LOG_ARCHIVE_DEST_1 and LOG_ARCHIVE_DEST_2 are used to specify the locations where archived redo logs are stored.
FAL_SERVER and FAL_CLIENT parameters are used for automatic recovery in case of a failover.
DB_UNIQUE_NAME parameter is used to uniquely identify each database in a Data Guard configuration.
LOG_ARCHIVE_CONFIG parameter i...
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I applied via Company Website and was interviewed in Jun 2024. There was 1 interview round.
Transaction log is a file that records all changes made to a database, allowing for recovery in case of system failure.
Records all changes made to the database
Allows for recovery in case of system failure
Helps maintain data integrity
Can be used for point-in-time recovery
Examples: redo log in Oracle, transaction log in SQL Server
SMON (System Monitor) process is a background process in Oracle database responsible for instance recovery and cleanup tasks.
SMON process performs crash recovery when an instance crashes
It coalesces free space in the database by merging adjacent free extents
SMON process also cleans up temporary segments that are no longer in use
It updates the data dictionary cache with the latest information
TCS interview questions for designations
PMON (Process Monitor) is a background process in Oracle database that performs process recovery and cleanup tasks.
PMON performs process recovery when a user process fails
It cleans up resources used by failed processes
PMON releases locks held by dead processes
It reclaims temporary segments that are no longer in use
Get interview-ready with Top TCS Interview Questions
I applied via Naukri.com and was interviewed in Apr 2023. There were 3 interview rounds.
I applied via Naukri.com and was interviewed before Apr 2023. There were 2 interview rounds.
Common topic like, SDT, P&L, SI & CI, Percentage, series.
SQL, C++, Java, error detection,
I applied via Naukri.com and was interviewed in Nov 2021. There were 4 interview rounds.
I applied via LinkedIn and was interviewed in Jan 2022. There were 2 interview rounds.
I applied via Naukri.com and was interviewed in May 2021. There were 3 interview rounds.
Top faced issue is the most common and critical problem faced in a particular field.
Examples: database crashes, data loss, security breaches, performance issues
It is important to have a plan in place to address top faced issues
Regular monitoring and maintenance can help prevent top faced issues
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