Intro to computer T/F

True
Data, instruction, and information travel along transmission media in either analog or digital form, depending on the transmission media
False
As data moves though a network from one program to another, it can use at most one kind of network standard
True
Ouery by example uses a graphical user interface that assists users with retrieving data
False
ISDN and DSL are more widely used that cable
True
Some smartphones can function as a wireless modem, called a mobile hot spot, when tethered to a personal computer
True
IP hijacking is one of the largest internet security threats
True
Wireless transmission media are used when it is impossible to install cables
True
each higher level of data consists of one or more items rom the lower level
False
Data redundancy decreases the chance of errors
False
A user cannot override the default value
False
You cannot maintain data in a database by importing data
True
Query by example uses a graphical user interface that assists users with retrieving data
True
To reduce data entry errors, well-designed forms should validate data as it is entered
True
A DBMS provides a variety of techniques to restore a database to a usable form in case it is damaged or destroyed
False
In a rollforward, the DBMS uses the log to undo any changes made to the database during a certain period
True
A data model defines how users view the organization of data
False
A large version of data warehouse is the data mart
False
In a Gantt chart like the one in the accompanying figure, the horizontal axis across the top or bottom of the chart displays a list of required activities
False
Detailed analysis sometimes is called physical design because the systems analysts develop the proposed solution without regard to any specific hardware or software
False
A CASE tool is an environment that allows software developers to test their programs with fictitious data without adversely affecting other programs, information systems, or data
False
The systems analyst may skip many of the activities in a detailed design when developing custom software
False
A computer can execute an assembly source program
True
An interpreter reads a code statement, converts it into one or more machine language instructions, and then executes those machine language instructions before moving to the next code statement
False
ASP.NET is used for the development of artificial intelligence applications
True
A visual programming language provides a graphical interface called a visual programming environment that allows developers to drag and drop objects to build programs and apps
True
PHP is a free, open source scripting language similar to C, Java, and Perl