Practice Exam 2 Flashcards
Object-oriented languages can only be used by professional programmers who have devoted years to learning object-oriented design and coding skills.
True
As predicted by Moore’s Law, CPU speeds continually increase.
True
Volatile memory devices can store data without using external power.
False
Although the operating system makes the computer usable, it does little application-specific work
True
linux applications are constructed using Objective-C and VB.NET languages.
False
In a closed source project, such as Microsoft Office, the source code is highly protected and only available to trusted employees and carefully vetted contractors.
True
Creating a system to record and manage the resolution of problems is the development task of a database administrator.
False
Managing the impact of database structural changes on applications and users is an operational task for a database administrator.
False
The lost-update problem can be resolved by implementing single-user database processing.
False
A data model describes data and relationships that will be stored in the database.
True
1:M, N:M, and 1:1 are common examples of minimum cardinalities, where N and M represent many relationships for two different entities.
False
A computer network between Seattle and Philadelphia is made possible through a LAN
False
The most basic cloud offering is platform as a service (PaaS) that is the cloud hosting of a bare server computer or data storage.
False
Oracle On demand is an example of infrastructure as a service.
False
To ensure security, the VPN client software decrypts the original message so that its contents are protected from snooping.
False
Unlike ftp, http does not have a secure version.
False
Purchasing raw materials is an example of a structured process
True
An information silo is a condition that exists when data are isolated in separated information systems.
True
The primary purpose of an ERP system is integration.
True
A trigger is a computer program stored in a database that is used to enforce business
False
Industry-specific solutions contain program and database configuration files but not the process blueprints that apply to ERP implementations in specific industries.
False
SAP and Oracle are the highest ranked ERP vendors in the market.
True
Bytes lack the capacity to measure sizes of noncharacter data.
False
Native applications are also known as thick-client applications.
True
The World Wide Web sponsors committees that create and publish protocols and other standards.
False
Characteristic of volatile memory?
contents are lost when power is off
Ronald runs both Windows 7 and Linux on his desktop computer. This process is called
PC virtualization
Bits are used for computer data because they ________.
are easy to represent physically
Albert creates a relational database to store employee performance statistics. He stores each employee’s data in independent rows and creates a column named “Employee Number” to assign unique numbers to each employee. This column is referred to as a(n)
primary key
What refers to the problem that exists in database applications when two users modify the same data item, but only one of those changes is recorded?
lost-update problem
Brad, a project manager, wants to build a database to integrate information about employees and tasks that they handle. Brad wants to track information such as task name, productivity of an employee on daily basis, and employee name. These aspects that Brad wants to track are called ________.
entities
A student management system allows students to have multiple majors, and advisers are assigned to handle multiple students and courses. This is an example of a(n) ________ relationship.
N:M
In cloud computing, resources are said to be “pooled” because organizations ________.
share the same physical hardware through virtualization
Compared to in-house hosting, cloud-based hosting ________.
minimizes the risk of investing in technology that will soon become obsolete
The ________ protocol standard is also known as Ethernet.
IEEE 802.3
digital subscriber line signals
Digital subscriber line signals do not interfere with telephone signals.
cable lines
rely on high-capacity optical fiber cables and use their own protocols for data transmission.
example of a structured process
customer returns
example of a dynamic process
Nike uses Facebook and Twitter to generate buzz about its new line of running shoes.
work group information systems
they support 10 to 100 users
Enterprise application integration is a ________.
Suite of software applications that consolidates existing systems by providing layers of software that connect applications together
A store is a procedure
computer program stored in a database that is used to enforce business rules
ERP training falls into two broad categories. One of the categories is training on how to use the ERP application software. What does the training include?
steps for using the applications to accomplish the activities in various processes
Joseph wishes to increase the operational efficiency of his new startup. In order to achieve this, what should Joseph do?
Joseph should use integrated data stored in his firm’s central database to analyze its day-to-day activities.
A data integrity problem will occur only if ________.
data are duplicated in a database
