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databases Online Quiz - 47

Description: databases Online Quiz - 47
Number of Questions: 20
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Tags: databases
Attempted 0/20 Correct 0 Score 0

What tool should you recommend for a junior DBA to use to create a simple backup strategy for a database?

  1. Database Engine Tuning Advisor

  2. SQL Server Configuration Manager

  3. Database Maintenance Plan Wizard

  4. Database Maintenance design surface


Correct Option: C

How can a blocking process be killed?

  1. Find the process in System Monitor and select Kill Process.

  2. Find the process in Activity Monitor and select Kill Process.

  3. Find the process in SQL Profiler and select Kill Process.

  4. Find the process in SSRS and select Kill Process.


Correct Option: B

Which is a major problem with SQL?

  1. SQL cannot support object-orientation

  2. The same query can be written in many ways, each with vastly different execution plans.

  3. SQL syntax is too difficult for non-computer professionals to use

  4. SQL creates excessive locks within the database


Correct Option: B

In Web Farm scenarios, which Encryption provider is suitable for encrypting data in configuration files:

  1. DPAPI

  2. RSA

  3. Any of the above

  4. None


Correct Option: B

The @active data warehouse architecture includes which of the following?

  1. At least one data mart

  2. Data that can extracted from numerous internal and external sources

  3. Near real-time updates

  4. All of the above.


Correct Option: D

Reconciled data is which of the following?

  1. Data stored in the various operational systems throughout the organization.

  2. Current data intended to be the single source for all decision support systems.

  3. Data stored in one operational system in the organization.

  4. Data that has been selected and formatted for end-user support applications.


Correct Option: B

Transient data is which of the following?

  1. Data in which changes to existing records cause the previous version of the records to be eliminated

  2. Data in which changes to existing records do not cause the previous version of the records to be eliminated

  3. Data that are never altered or deleted once they have been added

  4. Data that are never deleted once they have been added


Correct Option: A

The extract process is which of the following?

  1. Capturing all of the data contained in various operational systems

  2. Capturing a subset of the data contained in various operational systems

  3. Capturing all of the data contained in various decision support systems

  4. Capturing a subset of the data contained in various decision support systems


Correct Option: B

Data scrubbing is which of the following?

  1. A process to reject data from the data warehouse and to create the necessary indexes

  2. A process to load the data in the data warehouse and to create the necessary indexes

  3. A process to upgrade the quality of data after it is moved into a data warehouse

  4. A process to upgrade the quality of data before it is moved into a data warehouse


Correct Option: D

The load and index is which of the following?

  1. A process to reject data from the data warehouse and to create the necessary indexes

  2. A process to load the data in the data warehouse and to create the necessary indexes

  3. A process to upgrade the quality of data after it is moved into a data warehouse

  4. A process to upgrade the quality of data before it is moved into a data warehouse


Correct Option: B

Data transformation includes which of the following?

  1. A process to change data from a detailed level to a summary level

  2. A process to change data from a summary level to a detailed level

  3. Joining data from one source into various sources of data

  4. Separating data from one source into various sources of data


Correct Option: A

A multifield transformation does which of the following?

  1. Converts data from one field into multiple fields

  2. Converts data from multiple fields into one field

  3. Converts data from multiple fields into multiple fields

  4. All of the above


Correct Option: D

A star schema has what type of relationship between a dimension and fact table?

  1. Many-to-many

  2. One-to-one

  3. One-to-many

  4. All of the above.


Correct Option: C

Fact tables are which of the following?

  1. Completely demoralized

  2. Partially demoralized

  3. Completely normalized

  4. Partially normalized


Correct Option: C

AI Explanation

To answer this question, you need to understand the concepts of normalization and denormalization in the context of database design.

In database design, normalization is the process of organizing data in a database to eliminate redundancy and improve data integrity. It involves breaking down a database into smaller, more manageable tables and establishing relationships between them.

On the other hand, denormalization is the process of combining tables or adding redundant data to improve query performance. It can be done to simplify complex queries and reduce the need for joins between multiple tables.

A fact table is a central table in a star schema or snowflake schema that stores the measurements or metrics of a business process. It typically contains foreign keys that reference dimension tables and numerical measures that represent the business metrics.

The correct answer is C) Completely normalized. Fact tables are typically completely normalized to eliminate data redundancy and ensure data integrity. This means that the fact table adheres to the principles of normalization and does not contain any redundant or duplicated data.

A snowflake schema is which of the following types of tables?

  1. Fact

  2. Dimension

  3. Helper

  4. All of the above


Correct Option: D

A goal of data mining includes which of the following?

  1. To explain some observed event or condition

  2. To confirm that data exists

  3. To analyze data for expected relationships

  4. To create a new data warehouse


Correct Option: A

A report output file gets generated when you run "Validate APPS schema" by using the adadmin utility in the Oracle Applications 11i E-Business Suite environment. If the report shows something similar to "GL_CODE_COMBINATIONS table does not exist or is an invalid object", what is the first step that the database administrator (DBA) should take to correct this issue?

  1. Run the AD Relink utility and relink the GL product

  2. Use License Manager, and register the GL product.

  3. Run the "Recreate grants and synonyms for APPS schema" task by using the adadmin utility

  4. Run Autopatch, and apply GL latest available patch

  5. Run Rapid Install to reinstall the database components


Correct Option: C

Where can you find the Oracle 8.0.6 and iAS files in the Oracle Applications 11i file system?

  1. DB

  2. ORA

  3. COMN

  4. FND_TOP

  5. APPL_TOP


Correct Option: B

In which three cases is it most effective to run validation on the APPS schema in the Oracle Applications 11i E- Business Suite setup? (Choose three.)

  1. before performing an export/import

  2. immediately after an upgrade or applying a maintenance pack

  3. converting to multiple organizations or multiple reporting currencies

  4. after a patch or multiple patches are applied

  5. whenever you receive a run-time error that suggests that a problem is caused by the AD_DDL package


Correct Option: D,E
  1. There is no one-to-one relationship between schemas and users in a database

  2. the concept of a database schema is directly tied to the concept of a database user, or a grant from the schema owner

  3. The database user and the schema never have the same name

  4. A schema can allow another schema to use its objects by granting access

  5. An Oracle Application products database objects are divided between the product schema and the APPS Schema


Correct Option: B
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