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WGU Cybersecurity Architecture and Engineering (KFO1/D488) Cybersecurity-Architecture-and-Engineering Dumps in PDF

Free WGU Cybersecurity-Architecture-and-Engineering Real Questions (page: 3)

Cybersecurity-Architecture-and-Engineering PDF — 232 Questions

Which data type should be used to calculate 90% of the retail price of an item?

  1. Floating-point
  2. String
  3. Boolean
  4. Auto-number

Answer(s): A

Explanation:

A floating-point data type is used for numerical calculations that require a decimal point, such as percentages. In this case, to calculate 90% of the retail price of an item, a floating-point data type is necessary because it can represent both the whole number and the fractional part of the number, allowing for precise calculations.



Which item information should be stored in a database to determine an order total?

  1. Item order line
  2. Item unit price
  3. Item description
  4. Item restock levels

Answer(s): B

Explanation:

To determine an order total, the item unit price is essential because it represents the cost per unit of the item. By multiplying the unit price by the quantity ordered, you can calculate the total cost for each item in the order, and then sum these totals to get the overall order total.



How do data support an organization's business goals?

  1. Data create opportunities to compete for potential customers.
  2. Data can be manipulated to support desired outcomes.
  3. Data provide information for business decisions.
  4. Data ensure an organization's business goals are met.

Answer(s): C

Explanation:

Data support an organization's business goals by providing crucial information that aids in making informed decisions. Analyzing data helps identify trends, measure performance, and uncover insights that drive strategic planning and operational improvements. This informed decision-making process is vital for achieving business goals and staying competitive in the market.



Which statement best describes the purpose of a business intelligence (Bl) system?

  1. A Bl system allows access to raw data.
  2. A Bl system uses only proprietary data to maximize quality.
  3. A Bl system integrates all departments in an organization.
  4. A Bl system helps the strategic decision-making process.

Answer(s): D

Explanation:

A Business Intelligence (BI) system is designed to analyze and present data in a way that supports decision-making processes. It helps organizations make informed, strategic decisions by providing insights through data analysis, visualization, and reporting. BI systems aggregate data from various sources, enabling a comprehensive view of the business that informs planning and strategy.



What is the typical organizing principle of a database?

  1. Selective
  2. Projection
  3. Relational
  4. Modular

Answer(s): C

Explanation:

The relational model is the most common organizing principle of databases. In a relational database, data is organized into tables (or relations), where each table consists of rows and columns. Each row represents a record with a unique identifier, and each column represents a data field. This model allows for easy data retrieval and management through the use of structured query language (SQL).



Which database has multiple tables with interrelated fields?

  1. Interrelated
  2. Hierarchical
  3. Flat file
  4. Relational

Answer(s): D

Explanation:

Arelational databaseis structured to recognize relations among stored items of information.

Multiple tablesin a relational database can have interrelated fields.

These relationships are often managed throughforeign keys, which reference the primary keys of other tables.

This relational model allows for complex queries and data integrity across the database.

Example:Tables such asCustomers,Orders, andProductsin a sales database, whereOrderstable may reference bothCustomersandProductstables to establish relationships.


Reference:

"Database System Concepts" by Silberschatz, Korth, and Sudarshan.

"SQL and Relational Theory" by C.J. Date.



Which task is the responsibility of a database administrator?

  1. Installing and configuring databases
  2. Compiling code into an executable file
  3. Deciding on database applications for the company
  4. Troubleshooting network security issues

Answer(s): A

Explanation:

ADatabase Administrator (DBA)is responsible for managing the database infrastructure.

Primary responsibilitiesinclude:

Installing and configuringnew databases and database servers.

Ensuring databases run efficiently and are properly maintained.

Performingbackup and recoveryoperations to prevent data loss.

Monitoring performanceand tuning databases for optimal performance.

Implementingsecurity measuresto protect the database against unauthorized access.


Reference:

"Database Administration: The Complete Guide to DBA Practices and Procedures" by Craig S. Mullins.

Oracle and Microsoft SQL Server official documentation.



Which two options allow an application to access a database?

Choose 2 answers

  1. Structured Query Language (SQL)
  2. Java Database Connectivity (JDBC)
  3. Database management system (DBMS)
  4. Open Database Connectivity (ODBC) application
  5. Graphical user interface (GUI)

Answer(s): A,B

Explanation:

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.


Reference:

"SQL: The Complete Reference" by James R. Groff and Paul N. Weinberg.

"Java Database Connectivity: JDBC and Java" by Daniel K. Akers.



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