3160 final
Which of the following is NOT a common distribution logic for two-tiered server environments?
Tall client
NoSQL focuses on:
flexibility
The analysis of summarized data to support decision making is called:
informational processing
An open-source DBMS is:
A free source-code 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 enabled enterprise database connectivity across heterogeneous platforms.
A device to measure or detect fingerprints or signatures is called a ___ device.
Biometric
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
Which of the following functions model business rules?
Database analysis
Which of the following functions develop integrity controls?
Database design
A computer that provides database storage and access in a client/server environment is called a:
Database server
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 its unlocked.
Exclusive lock
The goal of data mining related to analyzing data for unexpected relationships is:
Explanatory
The need for data warehousing in an organization is driven by its need for an integrated view of HQ data. T/F
F
Versioning takes the pessimistic approach to locking.
F
When developing an application, one must decide where it will be placed when it is developed T/F
F
Word processing documents are commonly stored in a 'document store' NoSQL database model.
F
Data federation consolidates all data into 1 database.
FALSE
Quality data does not have to be unique.
FALSE
Retention refers to the amount of data that is not purged periodically from tables.
FALSE
Data that are detailed, current, and intended to be the single, authoritative source of all decision support applications are called ________ data.
Reconciled
The 3 major types of analytics are: descriptive, predictive, and prescriptive.
T
MapReduce is an algorithm for massive parallel processing utilized by Hadoop.
T
Structured Query Language (SQL) is a set of methodologies, processes, architectures, and technologies that transform raw data into meaningful information.
F
The granularity of locking is not a critical decision in database design.
F
Total quality management (TQM) focuses on defect correction rather than defect prevention.
FALSE
A client PC that is responsible for processing presentation logic, extensive application and business rules logic as well as many DBMS functions is called a:
Fat Client
Data that are accurate, consistent, and available in a timely fashion are considered:
High-quality
The use of a set of graphical tools that provides users with multidimensional views of their data is called:
On-line analytical processing (OLAP)
Which of the following is an advantage of stored procedures?
Performance improves for compiled 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
A data steward is a person assigned the responsibility of ensuring the organizational applications properly support the organization's enterprise goals for data quality. T/F
T
In some 3-tier architectures, most application code is stored on the application server.
T
Informational systems are designed to support decision making based on historical point-in-time and prediction data. T/F
T
NoSQL stands for 'Not only SQL'
T
Open Database Connectivity is an application programming interface that provides a common language for application programs to access and process SQL databases independent of the particular RDBMS that is accessed T/F
T
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 T/F
T
PHP is a platform for Web development.
T
The role of database administration is typically a more hands-on, physical involvement with the management of databases.
T
_______ facilitates the ability of applications to query relational data along with associates structured data.
XPath
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
Data quality ROI stands for:
Risk of incarceration
Which of the data-mining techniques searches for patterns and corrections in large data sets?
Rule Discovery
One simple task of a data quality audit is to:
Statistically profile all files.
A PC configured to handle user interface with little or no local 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
A______ is a procedure for acquiring the necessary locks for a transaction where all necessary locks are acquired before any are released.
2-phase lock
NoSQL focuses on avoidance of replication and minimizing storage space.
F
Datatype conflicts is an example of a ______ reason for deteriorated data quality.
External data source.
A separate data warehouse causes more contention for resources in an organization. T/F
F
Exclusive locks allow other transactions to read but not update a record or other resource.
F
Field-level locks are used quite often.
F
Geolocation logic is the application logic component responsible for data storage and retrieval. T or F?
F
Independent data marts do not generally lead to redundant data and efforts.
F
Lack of secure standards and lack of user acceptance are the major issues that must be resolved with web services. T/F
F
