<span>The step of opening a file creates a connection between a file and a program.Opening an output file usually creates the file on the disk and allows the program to write data to it.Opening an input file allows the program to read data from the file.</span>
Answer:
On-site food services is the INDEPENDENT variable and the weight gain is the DEPENDENT variable
Explanation:
Variables can be dependent or independent. An independent variable is the one used by the researcher to test its degree of influence on the dependent variable. The dependent variable, as the name implies, relies on changes in the independent variable to effect its own changes.
In the question, it is obvious that weight gain among the first year students is dependent on on-site food services
Answer:
Singleton pattern is the pattern for design that is build using the global variables which creates a lot of drawback in the designing. Singleton pattern are considered with the global variable and thus cannot be bound into single unit which complexes the components in design.
They have a loose coupled variables in design and also does not show the property of the multi-threading .These feature are responsible for the decrement in the performance and thus are not highly preferred choice for the pattern.So, it is known as the "anti- pattern".
Answer:
Data resiliency.
Explanation:
Spaces for storage may involve resilience to the information. Selecting a resiliency solution implies whether they assign capacity towards redundant details. The information resiliency choice regarding storage facilities.
Two-way mirror needs two capacity units or more. The information is engraved on both computers. Two-way mirror enables twice the volume of storage assigned to that of the storage capacity as such system capacity. This choice will prevent you against loss of a specific storage unit.
Answer:
The solution of this question is given below in the explanation section.
Explanation:
To design a database for a new soccer club, the following sequence of activities will be carried out.
_____8_____Create the application programs.
_____4_____ Create a description of each system process.
_____9_____ Test the system. Load the database.
____7______ Normalize the conceptual model.
___1_______ Interview the soccer club president.
___6_______ Create a conceptual model using ER diagrams.
___2_______ Interview the soccer club director of coaching.
____7______ Create the file (table) structures.
____3______ Obtain a general description of the soccer club operations.
____5______ Draw a data flow diagram and system flowcharts.
The correct orders of activities the to design a soccer club database is given below:
- Interview the soccer club president.
-
Interview the soccer club director of coaching.
- Obtain a general description of the soccer club operations.
-
Create a description of each system process.
-
Draw a data flow diagram and system flowcharts.
- Create a conceptual model using ER diagrams.
- Create the file (table) structures.
- Normalize the conceptual model.
- Create the application program
- Test the system. Load the database.
