Incremental data migration involves migrating only the partial data that has been modified since the last migration, reducing the workload and minimizing disruption to the system.

Data profiling involves analyzing data to understand its structure, content, and quality. It helps in identifying anomalies, such as inconsistencies, outliers, and discrepancies, which can affect data quality. Therefore, the correct option is "Anomalies."

A SQL syntax error occurs during the compilation of a query. These errors typically arise due to mistakes in the syntax of SQL statements, such as misspelled keywords, improper punctuation, or incorrect usage of clauses. Resolving syntax errors is crucial for ensuring the proper execution of SQL queries.

Data profiling helps in understanding the structure, content, and quality of the data. It identifies patterns, inconsistencies, and anomalies, which are crucial for ensuring data accuracy and reliability during the ETL process.

QuerySurge

Load testing tools are specifically designed to simulate a high volume of concurrent users accessing the system. This type of testing helps assess the system's ability to handle increased loads and ensures its scalability under heavy usage conditions. Stress testing also evaluates system performance under extreme conditions, but it may not necessarily focus solely on simulating concurrent users.

Manually deleting affected rows is not a recommended approach as it might lead to data inconsistency. Restarting the SQL Server service is a drastic measure and may disrupt other ongoing operations. Executing a new COMMIT TRANSACTION statement would finalize the changes, which is contrary to the goal of rolling back. The correct step is to use the ROLLBACK TRANSACTION statement to undo the changes made so far and maintain data integrity.

Access control testing involves assessing the methods used to authenticate users and enforce authorization policies. Therefore, the correct option is "Authorization," as it pertains to defining and enforcing access rights. Authentication verifies the identity of users, encryption secures data during transmission or storage, and firewalls protect networks from unauthorized access but are not directly related to access control testing.

This suggests a data integrity issue. Data integrity ensures the accuracy, reliability, and consistency of data throughout its lifecycle. In this scenario, the presence of duplicate records in the target database that were not in the source data indicates a failure in maintaining the integrity of the data during the ETL process.

Profiling in database monitoring refers to the process of monitoring and analyzing database query performance. It involves examining various aspects such as query execution time, resource usage, and query optimization to identify bottlenecks and optimize query performance. By profiling queries, database administrators can gain insights into how queries are executed and identify opportunities for improving database performance.