Intro to computer T/F

Data, instruction, and information travel along transmission media in either analog or digital form, depending on the transmission media

As data moves though a network from one program to another, it can use at most one kind of network standard

Ouery by example uses a graphical user interface that assists users with retrieving data

ISDN and DSL are more widely used that cable

Some smartphones can function as a wireless modem, called a mobile hot spot, when tethered to a personal computer

IP hijacking is one of the largest internet security threats

Wireless transmission media are used when it is impossible to install cables

each higher level of data consists of one or more items rom the lower level

Data redundancy decreases the chance of errors

A user cannot override the default value

You cannot maintain data in a database by importing data

Query by example uses a graphical user interface that assists users with retrieving data

To reduce data entry errors, well-designed forms should validate data as it is entered

A DBMS provides a variety of techniques to restore a database to a usable form in case it is damaged or destroyed

In a rollforward, the DBMS uses the log to undo any changes made to the database during a certain period

A data model defines how users view the organization of data

A large version of data warehouse is the data mart

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

Detailed analysis sometimes is called physical design because the systems analysts develop the proposed solution without regard to any specific hardware or software

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

The systems analyst may skip many of the activities in a detailed design when developing custom software

A computer can execute an assembly source program

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

ASP.NET is used for the development of artificial intelligence applications

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

PHP is a free, open source scripting language similar to C, Java, and Perl