Question # 1 Which operation converts raw data into information? A. InputB. OutputC. StorageD. Processing
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D. Processing
Answer Description Processing is the operation that converts raw data into meaningful information. Input data is collected and then processed through various means such as calculations, comparisons, or formatting to produce output that can be interpreted and used by humans or other systems.
Question # 2 When is it better to purchase software rather than build a software solution in-house? A. When the company has very specific needsB. When the company wants internal growthC. When there is a short timelineD. When the company wants to develop the skill sets of its internal IT staff
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C. When there is a short timeline
Answer Description It is better to purchase software rather than build a software solution in-house when there is a short timeline. Building software from scratch requires significant time for development, testing, and deployment. Purchasing off-the-shelf software can significantly reduce the time needed to implement a solution. Other considerations include:
Cost-effectiveness: Pre-built software can be more cost-effective than developing a custom solution, especially when factoring in the costs of development, maintenance, and support.
Immediate availability: Purchased software is usually ready to deploy immediately, whereas custom development can take months or even years.
Proven reliability: Commercial software often has a track record of reliability and user support, reducing the risk of bugs and issues that may arise with custom development.
Therefore, when time is of the essence, purchasing software is the preferable option.
References
Ian Sommerville, "Software Engineering," Pearson.
Steve McConnell, "Rapid Development: Taming Wild Software Schedules," Microsoft Press.
Question # 3 Which item facilitates communication between applications and databases?
A. Application database
B. Database driver
C. Application driver
D. Database application
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B. Database driver
Question # 4 An employee needs to execute a program from the command line.
A. Keyboard
B. Hard drive
C. Speaker
D. Printer
Click for Answer
A. Keyboard
Question # 5 What is one purpose of an End User License Agreement?
A. Allow customers to legally create and sell a new version of the softwareB. Allow customers to legally use the softwareC. Allow customers to legally modify and compile the source codeD. Allow customers to legally distribute the application to other users
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B. Allow customers to legally use the softwareQuestion # 6 Which two options allow an application to access a database? Choose 2 answers A. Structured Query Language (SQL)B. Java Database Connectivity (JDBC)C. Database management system (DBMS)D. Open Database Connectivity (ODBC) applicationE. Graphical user interface (GUI)
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A. Structured Query Language (SQL)B. Java Database Connectivity (JDBC)
Answer Description SQLis a standard language used to communicate with and manage databases. It allows applications to perform operations such as querying, updating, and managing data.
JDBCis an API in Java that enables Java applications to interact with databases. It provides methods for querying and updating data in a database using SQL.
DBMS (Database Management System)is the system software for creating and managing databases but not directly used by applications for database access.
ODBC (Open Database Connectivity)is another standard API but specific to applications in a broader range of languages and platforms.
GUI (Graphical User Interface)is a user interface and not a method for applications to access databases.
References:
"SQL: The Complete Reference" by James R. Groff and Paul N. Weinberg.
"Java Database Connectivity: JDBC and Java" by Daniel K. Akers.
Question # 7 In which state is data considered information? A. RawB. InputC. UnprocessedD. Processed
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D. Processed
Answer Description Data is considered information when it has been processed and organized in a meaningful way. Raw data in its unprocessed state is not useful until it undergoes processing to become interpretable and actionable information. Processing can involve sorting, aggregating, and analyzing data to extract valuable insights.
Question # 8 How does application software differ from operating systems?
A. Application software includes system utilities that run on demand of the user.
B. Application software consists of programs that end users run to accomplish business or personal tasks, such as e-mail.
C. Application software includes word processors and spreadsheet software that are useful to end users.
D. Application software supports the computer hardware system directly.
Click for Answer
B. Application software consists of programs that end users run to accomplish business or personal tasks, such as e-mail.
C. Application software includes word processors and spreadsheet software that are useful to end users.
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