Senior SQL Server

Test your Senior-level Relational Databases Sql Server skills in Database Data Management. This timed assessment evaluates your expertise in Information Technology.

Duration: 5 minutes

•40 questions

Time Remaining: 05:00

Progress: 0%

40 questions remaining

Question 1 of 40Assessment

What is the specific role of the Delta Store in a Clustered Columnstore Index during heavy DML operations on a large dataset?

A. It acts as a permanent secondary index that stores all non-compressed metadata for the columnstore.

B. It temporarily stores newly inserted rows in a row-store format before they are compressed into rowgroups.

C. It stores historical versions of rows to support Snapshot Isolation levels without affecting the main index.

D. It serves as a cache for frequently accessed column segments to reduce the need for decompression.

Keyboard Shortcuts

↑↓Navigate options

EnterSelect answer

←→Prev/Next question

SSkip question

1-4Select A-D

EscClear answer

SpaceNext question

BackspacePrevious question