Question

Why is migration less of a concern in data warehouses compared to other systems?

a.

Data warehouses have a negligible number of updates

b.

Data warehouses use a simplified migration process

c.

Data warehouses do not support dynamic extension

d.

Data warehouses have smaller block sizes

Posted under Data Warehousing and OLAP

Answer: (a).Data warehouses have a negligible number of updates Explanation:Migration is less of a concern in data warehouses compared to other systems because data warehouses have a negligible number of updates.

Engage with the Community - Add Your Comment

Confused About the Answer? Ask for Details Here.

Know the Explanation? Add it Here.

Q. Why is migration less of a concern in data warehouses compared to other systems?

Add Comment

Similar Questions

Discover Related MCQs

Q. How can block underutilization be managed in terms of the "Block Percent Free" and "Block Percent Used" parameters?

View solution

Q. What does RAID stand for in the context of data storage?

View solution

Q. What is the purpose of disk mirroring in RAID?

View solution

Q. How does RAID 5 provide fault tolerance?

View solution

Q. In RAID technology, what does disk striping involve?

View solution

Q. What is the advantage of RAID technology?

View solution

Q. In a query-centric system like a data warehouse, what dominates the need to process queries faster?

View solution

Q. What is one of the most effective methods for improving performance in a data warehouse?

View solution

Q. Why can you create a number of indexes for each table in a data warehouse?

View solution

Q. What should be considered when determining the maximum number of indexes per table in a data warehouse?

View solution

Q. Why does the loading of data into a data warehouse slow down when there are a large number of indexes?

View solution

Q. What is the default indexing method in most database management systems?

View solution

Q. Why is the B-Tree index technique considered superior to other indexing techniques?

View solution

Q. What is the selectivity of a column in a table?

View solution

Q. In a B-Tree index, what type of column is most suitable?

View solution

Q. What can be done to improve the selectivity of a non-highly selective column for B-Tree indexing?

View solution

Q. What is a bitmap index?

View solution

Q. How is a bitmap index constructed for a column with distinct values?

View solution

Q. In a bitmapped index, how is the result set determined for a query with multiple predicates?

View solution

Q. What is a disadvantage of bitmapped indexes?

View solution

View All MCQs on Data Warehousing and OLAP

Suggested Topics

Are you eager to expand your knowledge beyond Data Warehousing and OLAP? We've curated a selection of related categories that you might find intriguing.

Click on the categories below to discover a wealth of MCQs and enrich your understanding of Computer Science. Happy exploring!

Object Oriented Programming

Enhance your coding skills with our Object Oriented Programming MCQs. Understand...

SQL Server

Master Microsoft's database server with our SQL Server MCQs. Topics cover database...

Compiler Design

Unravel the process of translating source code into executable programs with our...

PHP

Venture into server-side scripting with our PHP MCQs. Cover everything from syntax...

Computer Graphics

Step into the visual side of computing with our Computer Graphics MCQs. Cover topics...

Operating System

Dive deep into the core of computers with our Operating System MCQs. Learn about...

Cloud Computing

Stay on top of the biggest trend in IT with our Cloud Computing MCQs. These questions...

MS Office

Master the suite of productivity tools with our MS Office MCQs. From Word and Excel...

Object Oriented Programming Using C++

Enhance your programming skills with our MCQs on Object Oriented Programming using...