Quiz on Data Cube Operations

Quiz on Data Cube Operations

University

15 Qs

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Quiz on Data Cube Operations

Quiz on Data Cube Operations

Assessment

Quiz

Other

University

Practice Problem

Hard

Created by

ragha priya

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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a slice in the context of data cubes?

A subset of the cubes for a single value of one or more dimensions

A method to store data in relational databases

A visualization operation that rotates data axes

A selection on multiple dimensions

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does the dice operation do?

It selects data based on one dimension

It rotates the data axes for visualization

It stores data in a multidimensional cube

It describes a sub cube by selecting on two or more dimensions

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is true about the pivot operation?

It stores data in relational databases

It is also called a rotation and provides an alternative presentation of data

It is a method for fast query results

It creates a new sub cube from one dimension

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What does MOLAP stand for?

Multilevel OLAP

Multidimensional Online Analytical Processing

Multidimensional OLAP

Multilevel Online Analytical Processing

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How is data stored in ROLAP?

In hybrid formats

In multidimensional cubes

As tables in a relational database

In flat files

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a characteristic of HOLAP?

It only uses SQL for queries

It combines features of MOLAP and ROLAP

It is the fastest query method

It stores all data in cubes

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of a slice operation on a three-dimensional cube?

A three-dimensional cube

A two-dimensional site

A one-dimensional array

A relational database table

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