29 Questions
What is the primary function of a DBMS?
To process and administer the database
What type of language is used to process a database?
Structured Query Language (SQL)
What is the purpose of a database application?
To serve as an intermediary between users and database data
What is the purpose of the entity-relationship data model?
To represent the logical structure of the database data and relationships
What is the role of user involvement in database development?
Users define the data model and design of the database
What is the purpose of locking in multi-user database processing?
To prevent the lost-update problem
What is the main purpose of a database?
To keep track of things
Which of the following statements about primary keys is correct?
A primary key is a column or group of columns that uniquely identifies a row in a table.
What is the purpose of a foreign key in a database?
To create relationships between tables in a database
Which of the following best describes metadata in the context of databases?
Metadata is data that describes the data stored in a database.
What is the primary function of a Database Management System (DBMS)?
To create, process, and administer a database
Which of the following statements about a database is correct?
A database is a self-describing collection of integrated records.
What is the primary role of an operating system?
To act as an intermediary between hardware and user
Which of the following is NOT a major category of operating systems?
Network OS
Which of the following is an example of a Nonmobile Client Operating System?
Linux
What is a software constraint for operating systems?
An operating system can only run on specific hardware
What is the difference between a native application and a web application?
Native applications are installed on the device, while web applications run in a browser
What is virtualization in the context of operating systems?
The process of running multiple operating systems on a single physical computer
What is a primary key in a database?
A field that identifies a unique row in a table
Which of the following is an example of a bad primary key?
Name field
What is a foreign key in a database?
A field used to connect to a field in another table
Why are currency fields considered bad primary keys?
Because currency values tend to change frequently
In a relational database, what is used to link tables together?
Foreign keys
What is the purpose of Business Process Model and Notation (BPMN)?
To represent business processes visually
What is the main difference between Server Virtualization and PC Virtualization?
Server Virtualization allows multiple virtual servers to run on a single physical server, while PC Virtualization allows a PC to host different operating systems.
What is the purpose of Desktop Virtualization?
To allow users to access their desktops remotely using any device with an internet connection.
What does a Site License authorize a company to do?
Install the product on all computers within the company or at a specific location.
What is the main characteristic of Application Software?
It is designed for specific tasks or functions, such as word processing or web browsing.
In what way does PC Virtualization differ from Desktop Virtualization?
PC Virtualization allows a PC to host different operating systems, while Desktop Virtualization separates a desktop environment remotely.
This quiz provides an overview of operating systems, which act as intermediaries between hardware and users. It covers the functions of managing files, running applications, and ensuring security on both client and server computers. The quiz discusses major operating systems for nonmobile clients, mobile clients, and servers.
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