ITCS 3160 Final Exam

An open-source DBMS is:

A free source RBMS that provides the functionality of an SQL-compliant DBMS

Which of the following advances in information systems contributed to the emergence of data warehousing?

Advances in middleware products that enables enterprise database connectivity across heterogenous platforms.

A device to measure or detect fingerprints or signatures is called a __________ device.

Biometric Device

Data quality problems can cascade when:

Data are copied from legacy systems

When we consider data in the data warehouse to be time-variant, we mean:

Data in the warehouse contain a time dimension so that they may be used to study trends and changes.

The role of a _________ emphasizes integration and coordination of metadata across many data sources.

Data warehouse administrator

A data mart is a:

Data warehouse that is limited in scope

A computer that provides database storage and access in a client/server environment is called a:

Database Server

Which of the following functions model business rules.

Database analytics

Which of the following functions develop integrity controls

Database design

The oldest form of analytics is:

Descriptive Analytics

A star schema contains both fact and _______ tables.

Dimension

Which of the following organizational trends does not encourage the need for data warehousing.

Downsizing

A ________ prevents another transaction from reading and therefore updating a record until it is unlocked.

Exclusive lock

The goal of data mining related to analyzing data for unexpected relationships is:

Exploratory

Datatype conflicts is an example of a _______ reason for deteriorated data quality.

External Data Source

(T/F) A separate data warehouse causes more contention for resources in an organization

False

(T/F) Data federation consolidates all data into one database.

False

(T/F) Exclusive locks allow other transactions to read but not update a record or other resource

False

(T/F) Field-level locks are used quite often

False

(T/F) Geological logic is the application logic component responsible for data storage and retrieval.

False

(T/F) Independent data marts do not generally lead to redundant data and efforts.

False

(T/F) Lack of secure standards and lack of user acceptance are the major issues that must be resolved with Web services.

False

(T/F) NoSQL focuses on avoidance of replication and minimizing storage space.

False

(T/F) Quality data does not have to be unique

False

(T/F) Query Language (SQL) is a set of methodologies, processes, architectures, and technologies that transform raw data into meaningful information.

False

(T/F) Retention to the amount of data is not purged periodically from tables.

False

(T/F) The granularity of locking is not a critical decision in database design

False

(T/F) Total Quality Management (TQM) focuses on deflect correction rather that defect prevention.

False

(T/F) Versioning takes the pessimistic approach to locking.

False

(T/F) When developing an application, one must decide where it will be placed when it is developed.

False

(T/F) Word processing documents are commonly stored in a 'document store' NoSQL database model.

False

A client PC that is responsible for processing logic, extensive application and business rules logic as well as many DBMS functions is called a:

Fat Client

NoSQL focuses on:

Flexibility

Data that are accurate, consistent, and available in a timely fashion are considered:

High-Quality

The analysis of summarized data to support decision making is called:

Informational processing

Data quality is important for all of the following reasons EXCEPT:

It provides a stream of profit

An audit trail of database changes is kept by a:

Journalizing facility

PHP is a popular API for MySQL because of all of the following EXCEPT:

Microsoft Integration

Which of the following is true about 3-tier architectures? More technological flexibility Requires a Mac Less scalable than two-tier Increased risk

More Technological flexibility

Which of the following is an advantage of stored procedures?

Performance improves for compiles SQL statements.

Data that are never physically altered once they are added to the store are called ________ data.

Periodic

A web server:

Processes client requests and returns HTML pages to the client

Sarbanes-Oxley Act was enacted to ensure the integrity of:

Public companies' financial statements

Data that are detailed, current, and intended to be the single, authoritative source of all decision support applications are called ________ data.

Reconciled

Data quality ROI stands for:

Risk of Incarceration

Which of the following data-mining techniques searches for patterns and correlations in large data sets?

Rule Discovery

One simple task of a data quality audit is to:

Statistically profile all files

Which of the following is NOT a common distribution logic for two-tiered server environments? Distributed Tall Client Thin Client Fat Client

Tall Client

A PC configured to handle user interface with little or no logical storage is called a:

Thin Client

A trigger can be used as a security measure in which of the following ways?

To cause special handling procedures to be executed.

TQM stands for:

Total Quality Management

(T/F) A data steward is a person assigned the responsibility of ensuring the organizational applications properly support the organization's enterprise goals for data quality.

True

(T/F) In some three-tier architectures, most application code is stored on the application server.

True

(T/F) Informational systems are designed to support decision making based on historical point-in-time and prediction data.

True

(T/F) MapReduce is an algorithm for massive parallel processing utilized by Hadoop.

True

(T/F) NoSQL stands for "Not Only SQL"

True

(T/F) Open Database Connectivity is an application interface that provides a common language for application programs to access and process SQL databases independent of the particular RDBMS that is accessed.

True

(T/F) Organizations adopt data mart architectures because it is easier to have separate, small data warehouses than to get all organizational parties to agree to one view of the organization in a central data warehouse.

True

(T/F) PHP is a platform for Web development

True

(T/F) The need for data warehousing in an organization is driven by its need for an integrated view of high-quality data.

True

(T/F) The role of database administration is typically a more hands-on, physical involvement with the management of databases.

True

(T/F) The three major types of analytics are: descriptive, predictive, and prescriptive

True

A ________ is a procedure for acquiring the necessary locks for a transaction where all necessary locks are acquired before any are released.

Two-Phase lock

________ facilitates the ability of applications to query relational data along with associated structured data.

XPath

The use of a set of graphical tools that provides users with multidimensional views of their data is called:

on-line analytical processing (OLAP)