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Zara

Window class, onEnablel/1, defines

A. is executed when a window is becoming visible or is being hidden
B. when a window is being disabled or enabled this event is executed
C. this event is executed when the user switches to another window of the same application
D. when a window receives the keyboard focus this event is executed

Option: A

Decision support systems (DSS) is

A. A family of relational database management systems marketed by IBM
B. Interactive systems that enable decision makers to use databases and models on a computer in order to solve ill-structured problems
C. It consists of nodes and branches starting from a single root node. Each node represents a test, or decision
D. None of these

Option: B

Data cleaning is

A. Large collection of data mostly stored in a computer system
B. The removal of noise errors and incorrect input from a database
C. The systematic description of the syntactic structure of a specific database. It describes the structure of the attributes the tables and foreign key relationships.
D. None of these

Option: B

Data dictionary is

A. Large collection of data mostly stored in a computer system
B. The removal of noise errors and incorrect input from a database
C. The systematic description of the syntactic structure of a specific database. It describes the structure of the attributes the tables and foreign key relations hips.
D. None of these

Option: C

Choose the correct remarks.

A. C++ allows any operator to be overloaded.
B. Some of the existing operators cannot be overloaded.
C. Operator precedence cannot be changed.
D. All of the above.

Option: C

cfront

A. is the front end of a C compiler
B. is the pre-processor of a C compiler
C. is a tool that translates a C++ code to its equivalent C code
D. none of the above

Option: C